diff --git a/material/assets/javascripts/application-7018102a8b.js b/material/assets/javascripts/application-7018102a8b.js
new file mode 100644
index 000000000..0625f054a
--- /dev/null
+++ b/material/assets/javascripts/application-7018102a8b.js
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n.output.edges?(v=n.output.edges[h],v.final=v.final||m):(v=new o.TokenSet,v.final=m,n.output.edges[h]=v),r.push({qNode:p,output:v,node:d})}}}return t},o.TokenSet.Builder=function(){this.previousWord="",this.root=new o.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},o.TokenSet.Builder.prototype.insert=function(e){var t,n=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var r=0;r<e.length&&r<this.previousWord.length&&e[r]==this.previousWord[r];r++)n++;this.minimize(n),t=0==this.uncheckedNodes.length?this.root:this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var r=n;r<e.length;r++){var i=new o.TokenSet,s=e[r];t.edges[s]=i,this.uncheckedNodes.push({parent:t,char:s,child:i}),t=i}t.final=!0,this.previousWord=e},o.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},o.TokenSet.Builder.prototype.minimize=function(e){for(var t=this.uncheckedNodes.length-1;t>=e;t--){var n=this.uncheckedNodes[t],r=n.child.toString();r in this.minimizedNodes?n.parent.edges[n.char]=this.minimizedNodes[r]:(n.child._str=r,this.minimizedNodes[r]=n.child),this.uncheckedNodes.pop()}},o.Index=function(e){this.invertedIndex=e.invertedIndex,this.documentVectors=e.documentVectors,this.tokenSet=e.tokenSet,this.documentCount=e.documentCount,this.averageDocumentLength=e.averageDocumentLength,this.b=e.b,this.k1=e.k1,this.fields=e.fields,this.pipeline=e.pipeline},o.Index.prototype.search=function(e){return this.query(function(t){var n=new o.QueryParser(e,t);n.parse()})},o.Index.prototype.query=function(e){var t=new o.Query(this.fields),n=Object.create(null),r=new o.Vector;e.call(t,t);for(var i=0;i<t.clauses.length;i++){var s=t.clauses[i],a=null;a=s.usePipeline?this.pipeline.runString(s.term):[s.term];for(var c=0;c<a.length;c++){var u=a[c];s.term=u;for(var l=o.TokenSet.fromClause(s),f=this.tokenSet.intersect(l).toArray(),h=0;h<f.length;h++){var d=f[h],p=this.invertedIndex[d],m=p._index,v=o.idf(p,this.documentCount),y=1,g=v*((this.k1+1)*y)/(this.k1*(1-this.b+this.b*(t.clauses.length/this.averageDocumentLength))+y);r.insert(m,g*s.boost);for(var w=0;w<s.fields.length;w++)for(var b=s.fields[w],x=p[b],_=Object.keys(x),E=0;E<_.length;E++){var k,S,T=_[E];k=x[T],S=new o.MatchData(d,b,k),T in n?n[T].combine(S):n[T]=S}}}}for(var _=Object.keys(n),L=[],i=0;i<_.length;i++){var C=_[i],O=this.documentVectors[C],g=r.similarity(O);L.push({ref:C,score:g,matchData:n[C]})}return L.sort(function(e,t){return t.score-e.score})},o.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(e){return[e,this.invertedIndex[e]]},this),t=Object.keys(this.documentVectors).map(function(e){return[e,this.documentVectors[e].toJSON()]},this);return{version:o.version,averageDocumentLength:this.averageDocumentLength,b:this.b,k1:this.k1,fields:this.fields,documentVectors:t,invertedIndex:e,pipeline:this.pipeline.toJSON()}},o.Index.load=function(e){var t={},n={},r=e.documentVectors,i=0,s={},a=e.invertedIndex,c=new o.TokenSet.Builder,u=o.Pipeline.load(e.pipeline);e.version!=o.version&&o.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+o.version+"' does not match serialized index '"+e.version+"'");for(var l=0;l<r.length;l++,i++){var f=r[l],h=f[0],d=f[1];n[h]=new o.Vector(d)}for(var l=0;l<a.length;l++){var f=a[l],p=f[0],m=f[1];c.insert(p),s[p]=m}return c.finish(),t.b=e.b,t.k1=e.k1,t.fields=e.fields,t.averageDocumentLength=e.averageDocumentLength,t.documentCount=i,t.documentVectors=n,t.invertedIndex=s,t.tokenSet=c.root,t.pipeline=u,new o.Index(t)},o.Builder=function(){this._ref="id",this._fields=[],this.invertedIndex=Object.create(null),this.documentTermFrequencies={},this.documentLengths={},this.tokenizer=o.tokenizer,this.pipeline=new o.Pipeline,this.searchPipeline=new o.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},o.Builder.prototype.ref=function(e){this._ref=e},o.Builder.prototype.field=function(e){this._fields.push(e)},o.Builder.prototype.b=function(e){e<0?this._b=0:e>1?this._b=1:this._b=e},o.Builder.prototype.k1=function(e){this._k1=e},o.Builder.prototype.add=function(e){var t=e[this._ref],n={};this.documentCount+=1,this.documentTermFrequencies[t]=n,this.documentLengths[t]=0;for(var r=0;r<this._fields.length;r++){var i=this._fields[r],o=e[i],s=this.tokenizer(o),a=this.pipeline.run(s);this.documentLengths[t]+=a.length;for(var c=0;c<a.length;c++){var u=a[c];if(void 0==n[u]&&(n[u]=0),n[u]+=1,void 0==this.invertedIndex[u]){var l=Object.create(null);l._index=this.termIndex,this.termIndex+=1;for(var f=0;f<this._fields.length;f++)l[this._fields[f]]=Object.create(null);this.invertedIndex[u]=l}void 0==this.invertedIndex[u][i][t]&&(this.invertedIndex[u][i][t]=Object.create(null));for(var h=0;h<this.metadataWhitelist.length;h++){var d=this.metadataWhitelist[h],p=u.metadata[d];void 0==this.invertedIndex[u][i][t][d]&&(this.invertedIndex[u][i][t][d]=[]),this.invertedIndex[u][i][t][d].push(p)}}}},o.Builder.prototype.calculateAverageDocumentLengths=function(){for(var e=Object.keys(this.documentLengths),t=e.length,n=0,r=0;r<t;r++){var i=e[r];n+=this.documentLengths[i]}this.averageDocumentLength=n/t},o.Builder.prototype.createDocumentVectors=function(){for(var e={},t=Object.keys(this.documentTermFrequencies),n=t.length,r=0;r<n;r++){for(var i=t[r],s=this.documentLengths[i],a=new o.Vector,c=this.documentTermFrequencies[i],u=Object.keys(c),l=u.length,f=0;f<l;f++){var h=u[f],d=c[h],p=this.invertedIndex[h]._index,m=o.idf(this.invertedIndex[h],this.documentCount),v=m*((this._k1+1)*d)/(this._k1*(1-this._b+this._b*(s/this.averageDocumentLength))+d),y=Math.round(1e3*v)/1e3;a.insert(p,y)}e[i]=a}this.documentVectors=e},o.Builder.prototype.createTokenSet=function(){this.tokenSet=o.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},o.Builder.prototype.build=function(){return this.calculateAverageDocumentLengths(),this.createDocumentVectors(),this.createTokenSet(),new o.Index({invertedIndex:this.invertedIndex,documentVectors:this.documentVectors,tokenSet:this.tokenSet,averageDocumentLength:this.averageDocumentLength,documentCount:this.documentCount,fields:this._fields,pipeline:this.searchPipeline,b:this._b,k1:this._k1})},o.Builder.prototype.use=function(e){var t=Array.prototype.slice.call(arguments,1);t.unshift(this),e.apply(this,t)},o.MatchData=function(e,t,n){this.metadata={},this.metadata[e]={},this.metadata[e][t]=n},o.MatchData.prototype.combine=function(e){for(var t=Object.keys(e.metadata),n=0;n<t.length;n++){var r=t[n],i=Object.keys(e.metadata[r]);void 0==this.metadata[r]&&(this.metadata[r]={});for(var o=0;o<i.length;o++){var s=i[o],a=Object.keys(e.metadata[r][s]);void 0==this.metadata[r][s]&&(this.metadata[r][s]={});for(var c=0;c<a.length;c++){var u=a[c];void 0==this.metadata[r][s][u]?this.metadata[r][s][u]=e.metadata[r][s][u]:this.metadata[r][s][u]=this.metadata[r][s][u].concat(e.metadata[r][s][u])}}}},o.Query=function(e){this.clauses=[],this.allFields=e},o.Query.prototype.clause=function(e){return"fields"in e||(e.fields=this.allFields),"boost"in e||(e.boost=1),"usePipeline"in e||(e.usePipeline=!0),this.clauses.push(e),this},o.Query.prototype.term=function(e,t){var n=t||{};return n.term=e,this.clause(n),this},o.QueryParseError=function(e,t,n){this.name="QueryParseError",this.message=e,this.start=t,this.end=n},o.QueryParseError.prototype=new Error,o.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0},o.QueryLexer.prototype.run=function(){for(var e=o.QueryLexer.lexText;e;)e=e(this)},o.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.str.slice(this.start,this.pos),start:this.start,end:this.pos}),this.start=this.pos},o.QueryLexer.prototype.next=function(){if(this.pos==this.length)return o.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},o.QueryLexer.prototype.width=function(){return this.pos-this.start},o.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},o.QueryLexer.prototype.backup=function(){this.pos-=1},o.QueryLexer.prototype.acceptDigitRun=function(){var e,t;do e=this.next(),t=e.charCodeAt(0);while(t>47&&t<58);e!=o.QueryLexer.EOS&&this.backup()},o.QueryLexer.prototype.more=function(){return this.pos<this.length},o.QueryLexer.EOS="EOS",o.QueryLexer.FIELD="FIELD",o.QueryLexer.TERM="TERM",o.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",o.QueryLexer.BOOST="BOOST",o.QueryLexer.lexField=function(e){return e.backup(),e.emit(o.QueryLexer.FIELD),e.ignore(),o.QueryLexer.lexText},o.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(o.QueryLexer.TERM)),e.ignore(),e.more())return o.QueryLexer.lexText},o.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(o.QueryLexer.EDIT_DISTANCE),o.QueryLexer.lexText},o.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(o.QueryLexer.BOOST),o.QueryLexer.lexText},o.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(o.QueryLexer.TERM)},o.QueryLexer.termSeparator=o.tokenizer.separator,o.QueryLexer.lexText=function(e){for(;;){var t=e.next();if(t==o.QueryLexer.EOS)return o.QueryLexer.lexEOS;if(":"==t)return o.QueryLexer.lexField;if("~"==t)return e.backup(),e.width()>0&&e.emit(o.QueryLexer.TERM),o.QueryLexer.lexEditDistance;if("^"==t)return e.backup(),e.width()>0&&e.emit(o.QueryLexer.TERM),o.QueryLexer.lexBoost;if(t.match(o.QueryLexer.termSeparator))return o.QueryLexer.lexTerm}},o.QueryParser=function(e,t){this.lexer=new o.QueryLexer(e),this.query=t,this.currentClause={},
+this.lexemeIdx=0},o.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=o.QueryParser.parseFieldOrTerm;e;)e=e(this);return this.query},o.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},o.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},o.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},o.QueryParser.parseFieldOrTerm=function(e){var t=e.peekLexeme();if(void 0!=t)switch(t.type){case o.QueryLexer.FIELD:return o.QueryParser.parseField;case o.QueryLexer.TERM:return o.QueryParser.parseTerm;default:var n="expected either a field or a term, found "+t.type+" with value '"+t.str+"'";throw new o.QueryParseError(n,t.start,t.end)}},o.QueryParser.parseField=function(e){var t=e.consumeLexeme();if(void 0!=t){if(e.query.allFields.indexOf(t.str)==-1){var n=e.query.allFields.map(function(e){return"'"+e+"'"}).join(),r="unrecognised field '"+t.str+"', possible fields: "+n;throw new o.QueryParseError(r,t.start,t.end)}e.currentClause.fields=[t.str];var i=e.peekLexeme();if(void 0==i){var r="expecting term, found nothing";throw new o.QueryParseError(r,t.start,t.end)}switch(i.type){case o.QueryLexer.TERM:return o.QueryParser.parseTerm;default:var r="expecting a field, found '"+i.type+"'";throw new o.QueryParseError(r,i.start,i.end)}}},o.QueryParser.parseTerm=function(e){var t=e.consumeLexeme();if(void 0!=t){e.currentClause.term=t.str.toLowerCase(),t.str.indexOf("*")!=-1&&(e.currentClause.usePipeline=!1);var n=e.peekLexeme();if(void 0==n)return void e.nextClause();switch(n.type){case o.QueryLexer.TERM:return e.nextClause(),o.QueryParser.parseTerm;case o.QueryLexer.FIELD:return e.nextClause(),o.QueryParser.parseField;case o.QueryLexer.EDIT_DISTANCE:return o.QueryParser.parseEditDistance;case o.QueryLexer.BOOST:return o.QueryParser.parseBoost;default:var r="Unexpected lexeme type '"+n.type+"'";throw new o.QueryParseError(r,n.start,n.end)}}},o.QueryParser.parseEditDistance=function(e){var t=e.consumeLexeme();if(void 0!=t){var n=parseInt(t.str,10);if(isNaN(n)){var r="edit distance must be numeric";throw new o.QueryParseError(r,t.start,t.end)}e.currentClause.editDistance=n;var i=e.peekLexeme();if(void 0==i)return void e.nextClause();switch(i.type){case o.QueryLexer.TERM:return e.nextClause(),o.QueryParser.parseTerm;case o.QueryLexer.FIELD:return e.nextClause(),o.QueryParser.parseField;case o.QueryLexer.EDIT_DISTANCE:return o.QueryParser.parseEditDistance;case o.QueryLexer.BOOST:return o.QueryParser.parseBoost;default:var r="Unexpected lexeme type '"+i.type+"'";throw new o.QueryParseError(r,i.start,i.end)}}},o.QueryParser.parseBoost=function(e){var t=e.consumeLexeme();if(void 0!=t){var n=parseInt(t.str,10);if(isNaN(n)){var r="boost must be numeric";throw new o.QueryParseError(r,t.start,t.end)}e.currentClause.boost=n;var i=e.peekLexeme();if(void 0==i)return void e.nextClause();switch(i.type){case o.QueryLexer.TERM:return e.nextClause(),o.QueryParser.parseTerm;case o.QueryLexer.FIELD:return e.nextClause(),o.QueryParser.parseField;case o.QueryLexer.EDIT_DISTANCE:return o.QueryParser.parseEditDistance;case o.QueryLexer.BOOST:return o.QueryParser.parseBoost;default:var r="Unexpected lexeme type '"+i.type+"'";throw new o.QueryParseError(r,i.start,i.end)}}},function(o,s){r=s,i="function"==typeof r?r.call(t,n,t,e):r,!(void 0!==i&&(e.exports=i))}(this,function(){return o})}()},function(e,t,n){"use strict";var r=n(75),i=n(77),o=n(79),s=n(83),a=n(86),c=n(88),u=n(93);t.a={Event:r.a,Header:i.a,Nav:o.a,Search:s.a,Sidebar:a.a,Source:c.a,Tabs:u.a}},function(e,t,n){"use strict";var r=n(33),i=n(76);t.a={Listener:r.a,MatchMedia:i.a}},function(e,t,n){"use strict";function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var 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n.output.edges?(v=n.output.edges[h],v.final=v.final||m):(v=new o.TokenSet,v.final=m,n.output.edges[h]=v),r.push({qNode:p,output:v,node:d})}}}return t},o.TokenSet.Builder=function(){this.previousWord="",this.root=new o.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},o.TokenSet.Builder.prototype.insert=function(e){var t,n=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var r=0;r<e.length&&r<this.previousWord.length&&e[r]==this.previousWord[r];r++)n++;this.minimize(n),t=0==this.uncheckedNodes.length?this.root:this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var r=n;r<e.length;r++){var i=new o.TokenSet,s=e[r];t.edges[s]=i,this.uncheckedNodes.push({parent:t,char:s,child:i}),t=i}t.final=!0,this.previousWord=e},o.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},o.TokenSet.Builder.prototype.minimize=function(e){for(var t=this.uncheckedNodes.length-1;t>=e;t--){var n=this.uncheckedNodes[t],r=n.child.toString();r in this.minimizedNodes?n.parent.edges[n.char]=this.minimizedNodes[r]:(n.child._str=r,this.minimizedNodes[r]=n.child),this.uncheckedNodes.pop()}},o.Index=function(e){this.invertedIndex=e.invertedIndex,this.documentVectors=e.documentVectors,this.tokenSet=e.tokenSet,this.documentCount=e.documentCount,this.averageDocumentLength=e.averageDocumentLength,this.b=e.b,this.k1=e.k1,this.fields=e.fields,this.pipeline=e.pipeline},o.Index.prototype.search=function(e){return this.query(function(t){var n=new o.QueryParser(e,t);n.parse()})},o.Index.prototype.query=function(e){var t=new o.Query(this.fields),n=Object.create(null),r=new o.Vector;e.call(t,t);for(var i=0;i<t.clauses.length;i++){var s=t.clauses[i],a=null;a=s.usePipeline?this.pipeline.runString(s.term):[s.term];for(var c=0;c<a.length;c++){var u=a[c];s.term=u;for(var l=o.TokenSet.fromClause(s),f=this.tokenSet.intersect(l).toArray(),h=0;h<f.length;h++){var d=f[h],p=this.invertedIndex[d],m=p._index,v=o.idf(p,this.documentCount),y=1,g=v*((this.k1+1)*y)/(this.k1*(1-this.b+this.b*(t.clauses.length/this.averageDocumentLength))+y);r.insert(m,g*s.boost);for(var w=0;w<s.fields.length;w++)for(var b=s.fields[w],x=p[b],_=Object.keys(x),E=0;E<_.length;E++){var k,S,T=_[E];k=x[T],S=new o.MatchData(d,b,k),T in n?n[T].combine(S):n[T]=S}}}}for(var _=Object.keys(n),L=[],i=0;i<_.length;i++){var C=_[i],O=this.documentVectors[C],g=r.similarity(O);L.push({ref:C,score:g,matchData:n[C]})}return L.sort(function(e,t){return t.score-e.score})},o.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(e){return[e,this.invertedIndex[e]]},this),t=Object.keys(this.documentVectors).map(function(e){return[e,this.documentVectors[e].toJSON()]},this);return{version:o.version,averageDocumentLength:this.averageDocumentLength,b:this.b,k1:this.k1,fields:this.fields,documentVectors:t,invertedIndex:e,pipeline:this.pipeline.toJSON()}},o.Index.load=function(e){var t={},n={},r=e.documentVectors,i=0,s={},a=e.invertedIndex,c=new o.TokenSet.Builder,u=o.Pipeline.load(e.pipeline);e.version!=o.version&&o.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+o.version+"' does not match serialized index '"+e.version+"'");for(var l=0;l<r.length;l++,i++){var f=r[l],h=f[0],d=f[1];n[h]=new o.Vector(d)}for(var l=0;l<a.length;l++){var f=a[l],p=f[0],m=f[1];c.insert(p),s[p]=m}return c.finish(),t.b=e.b,t.k1=e.k1,t.fields=e.fields,t.averageDocumentLength=e.averageDocumentLength,t.documentCount=i,t.documentVectors=n,t.invertedIndex=s,t.tokenSet=c.root,t.pipeline=u,new o.Index(t)},o.Builder=function(){this._ref="id",this._fields=[],this.invertedIndex=Object.create(null),this.documentTermFrequencies={},this.documentLengths={},this.tokenizer=o.tokenizer,this.pipeline=new o.Pipeline,this.searchPipeline=new o.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},o.Builder.prototype.ref=function(e){this._ref=e},o.Builder.prototype.field=function(e){this._fields.push(e)},o.Builder.prototype.b=function(e){e<0?this._b=0:e>1?this._b=1:this._b=e},o.Builder.prototype.k1=function(e){this._k1=e},o.Builder.prototype.add=function(e){var t=e[this._ref],n={};this.documentCount+=1,this.documentTermFrequencies[t]=n,this.documentLengths[t]=0;for(var r=0;r<this._fields.length;r++){var i=this._fields[r],o=e[i],s=this.tokenizer(o),a=this.pipeline.run(s);this.documentLengths[t]+=a.length;for(var c=0;c<a.length;c++){var u=a[c];if(void 0==n[u]&&(n[u]=0),n[u]+=1,void 0==this.invertedIndex[u]){var l=Object.create(null);l._index=this.termIndex,this.termIndex+=1;for(var f=0;f<this._fields.length;f++)l[this._fields[f]]=Object.create(null);this.invertedIndex[u]=l}void 0==this.invertedIndex[u][i][t]&&(this.invertedIndex[u][i][t]=Object.create(null));for(var h=0;h<this.metadataWhitelist.length;h++){var d=this.metadataWhitelist[h],p=u.metadata[d];void 0==this.invertedIndex[u][i][t][d]&&(this.invertedIndex[u][i][t][d]=[]),this.invertedIndex[u][i][t][d].push(p)}}}},o.Builder.prototype.calculateAverageDocumentLengths=function(){for(var e=Object.keys(this.documentLengths),t=e.length,n=0,r=0;r<t;r++){var i=e[r];n+=this.documentLengths[i]}this.averageDocumentLength=n/t},o.Builder.prototype.createDocumentVectors=function(){for(var e={},t=Object.keys(this.documentTermFrequencies),n=t.length,r=0;r<n;r++){for(var i=t[r],s=this.documentLengths[i],a=new o.Vector,c=this.documentTermFrequencies[i],u=Object.keys(c),l=u.length,f=0;f<l;f++){var h=u[f],d=c[h],p=this.invertedIndex[h]._index,m=o.idf(this.invertedIndex[h],this.documentCount),v=m*((this._k1+1)*d)/(this._k1*(1-this._b+this._b*(s/this.averageDocumentLength))+d),y=Math.round(1e3*v)/1e3;a.insert(p,y)}e[i]=a}this.documentVectors=e},o.Builder.prototype.createTokenSet=function(){this.tokenSet=o.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},o.Builder.prototype.build=function(){return this.calculateAverageDocumentLengths(),this.createDocumentVectors(),this.createTokenSet(),new o.Index({invertedIndex:this.invertedIndex,documentVectors:this.documentVectors,tokenSet:this.tokenSet,averageDocumentLength:this.averageDocumentLength,documentCount:this.documentCount,fields:this._fields,pipeline:this.searchPipeline,b:this._b,k1:this._k1})},o.Builder.prototype.use=function(e){var t=Array.prototype.slice.call(arguments,1);t.unshift(this),e.apply(this,t)},o.MatchData=function(e,t,n){this.metadata={},this.metadata[e]={},this.metadata[e][t]=n},o.MatchData.prototype.combine=function(e){for(var t=Object.keys(e.metadata),n=0;n<t.length;n++){var r=t[n],i=Object.keys(e.metadata[r]);void 0==this.metadata[r]&&(this.metadata[r]={});for(var o=0;o<i.length;o++){var s=i[o],a=Object.keys(e.metadata[r][s]);void 0==this.metadata[r][s]&&(this.metadata[r][s]={});for(var c=0;c<a.length;c++){var u=a[c];void 0==this.metadata[r][s][u]?this.metadata[r][s][u]=e.metadata[r][s][u]:this.metadata[r][s][u]=this.metadata[r][s][u].concat(e.metadata[r][s][u])}}}},o.Query=function(e){this.clauses=[],this.allFields=e},o.Query.prototype.clause=function(e){return"fields"in e||(e.fields=this.allFields),"boost"in e||(e.boost=1),"usePipeline"in e||(e.usePipeline=!0),this.clauses.push(e),this},o.Query.prototype.term=function(e,t){var n=t||{};return n.term=e,this.clause(n),this},o.QueryParseError=function(e,t,n){this.name="QueryParseError",this.message=e,this.start=t,this.end=n},o.QueryParseError.prototype=new Error,o.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0},o.QueryLexer.prototype.run=function(){for(var e=o.QueryLexer.lexText;e;)e=e(this)},o.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.str.slice(this.start,this.pos),start:this.start,end:this.pos}),this.start=this.pos},o.QueryLexer.prototype.next=function(){if(this.pos==this.length)return o.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},o.QueryLexer.prototype.width=function(){return this.pos-this.start},o.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},o.QueryLexer.prototype.backup=function(){this.pos-=1},o.QueryLexer.prototype.acceptDigitRun=function(){var e,t;do e=this.next(),t=e.charCodeAt(0);while(t>47&&t<58);e!=o.QueryLexer.EOS&&this.backup()},o.QueryLexer.prototype.more=function(){return this.pos<this.length},o.QueryLexer.EOS="EOS",o.QueryLexer.FIELD="FIELD",o.QueryLexer.TERM="TERM",o.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",o.QueryLexer.BOOST="BOOST",o.QueryLexer.lexField=function(e){return e.backup(),e.emit(o.QueryLexer.FIELD),e.ignore(),o.QueryLexer.lexText},o.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(o.QueryLexer.TERM)),e.ignore(),e.more())return o.QueryLexer.lexText},o.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(o.QueryLexer.EDIT_DISTANCE),o.QueryLexer.lexText},o.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(o.QueryLexer.BOOST),o.QueryLexer.lexText},o.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(o.QueryLexer.TERM)},o.QueryLexer.termSeparator=o.tokenizer.separator,o.QueryLexer.lexText=function(e){for(;;){var t=e.next();if(t==o.QueryLexer.EOS)return o.QueryLexer.lexEOS;if(":"==t)return o.QueryLexer.lexField;if("~"==t)return e.backup(),e.width()>0&&e.emit(o.QueryLexer.TERM),
-o.QueryLexer.lexEditDistance;if("^"==t)return e.backup(),e.width()>0&&e.emit(o.QueryLexer.TERM),o.QueryLexer.lexBoost;if(t.match(o.QueryLexer.termSeparator))return o.QueryLexer.lexTerm}},o.QueryParser=function(e,t){this.lexer=new o.QueryLexer(e),this.query=t,this.currentClause={},this.lexemeIdx=0},o.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=o.QueryParser.parseFieldOrTerm;e;)e=e(this);return this.query},o.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},o.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},o.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},o.QueryParser.parseFieldOrTerm=function(e){var t=e.peekLexeme();if(void 0!=t)switch(t.type){case o.QueryLexer.FIELD:return o.QueryParser.parseField;case o.QueryLexer.TERM:return o.QueryParser.parseTerm;default:var n="expected either a field or a term, found "+t.type+" with value '"+t.str+"'";throw new o.QueryParseError(n,t.start,t.end)}},o.QueryParser.parseField=function(e){var t=e.consumeLexeme();if(void 0!=t){if(e.query.allFields.indexOf(t.str)==-1){var n=e.query.allFields.map(function(e){return"'"+e+"'"}).join(),r="unrecognised field '"+t.str+"', possible fields: "+n;throw new o.QueryParseError(r,t.start,t.end)}e.currentClause.fields=[t.str];var i=e.peekLexeme();if(void 0==i){var r="expecting term, found nothing";throw new o.QueryParseError(r,t.start,t.end)}switch(i.type){case o.QueryLexer.TERM:return o.QueryParser.parseTerm;default:var r="expecting a field, found '"+i.type+"'";throw new o.QueryParseError(r,i.start,i.end)}}},o.QueryParser.parseTerm=function(e){var t=e.consumeLexeme();if(void 0!=t){e.currentClause.term=t.str.toLowerCase(),t.str.indexOf("*")!=-1&&(e.currentClause.usePipeline=!1);var n=e.peekLexeme();if(void 0==n)return void e.nextClause();switch(n.type){case o.QueryLexer.TERM:return 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.md-nav__link[for=toc]~.md-nav{display:-webkit-box;display:-ms-flexbox;display:flex}.md-nav__source{display:block;padding:.4rem;background-color:rgba(50,64,144,.9675);color:#fff}.md-search__overlay{position:absolute;top:.4rem;left:.4rem;width:4rem;height:4rem;-webkit-transform-origin:center;transform-origin:center;-webkit-transition:opacity .2s .2s,-webkit-transform .3s .1s;transition:opacity .2s .2s,-webkit-transform .3s .1s;transition:transform .3s .1s,opacity .2s .2s;transition:transform .3s .1s,opacity .2s .2s,-webkit-transform .3s .1s;border-radius:2rem;background-color:#fff;overflow:hidden;pointer-events:none}[data-md-toggle=search]:checked~.md-header .md-search__overlay{-webkit-transition:opacity .1s,-webkit-transform .4s;transition:opacity .1s,-webkit-transform .4s;transition:transform .4s,opacity .1s;transition:transform .4s,opacity .1s,-webkit-transform .4s;opacity:1}.md-search__inner{position:fixed;top:0;left:100%;height:100%;-webkit-transform:translateX(5%);transform:translateX(5%);-webkit-transition:left 0s .3s,opacity .15s .15s,-webkit-transform .15s cubic-bezier(.4,0,.2,1) .15s;transition:left 0s .3s,opacity .15s .15s,-webkit-transform .15s cubic-bezier(.4,0,.2,1) .15s;transition:left 0s .3s,transform .15s cubic-bezier(.4,0,.2,1) .15s,opacity .15s .15s;transition:left 0s .3s,transform .15s cubic-bezier(.4,0,.2,1) .15s,opacity .15s .15s,-webkit-transform .15s cubic-bezier(.4,0,.2,1) .15s;opacity:0;z-index:2}[data-md-toggle=search]:checked~.md-header .md-search__inner{left:0;-webkit-transform:translateX(0);transform:translateX(0);-webkit-transition:left 0s 0s,opacity .15s .15s,-webkit-transform .15s cubic-bezier(.1,.7,.1,1) .15s;transition:left 0s 0s,opacity .15s .15s,-webkit-transform .15s cubic-bezier(.1,.7,.1,1) .15s;transition:left 0s 0s,transform .15s cubic-bezier(.1,.7,.1,1) .15s,opacity .15s .15s;transition:left 0s 0s,transform .15s cubic-bezier(.1,.7,.1,1) .15s,opacity .15s .15s,-webkit-transform .15s cubic-bezier(.1,.7,.1,1) .15s;opacity:1}.md-search__input{width:100%;height:5.6rem;font-size:1.8rem}.md-search__icon[for=search]{top:1.6rem;left:1.6rem}.md-search__icon[for=search][for=search]:before{content:"arrow_back"}.md-search__icon[type=reset]{top:1.6rem;right:1.6rem}.md-search__output{top:5.6rem;bottom:0}.md-search-result__article--document:before{display:none}}@media only screen and (max-width:76.1875em){[data-md-toggle=drawer]:checked~.md-overlay{width:100%;height:100%;-webkit-transition:width 0s,height 0s,opacity .25s;transition:width 0s,height 0s,opacity .25s;opacity:1}.md-header-nav__button.md-icon--home,.md-header-nav__button.md-logo{display:none}.md-nav{background-color:#fff}.md-nav--primary,.md-nav--primary .md-nav{display:-webkit-box;display:-ms-flexbox;display:flex;position:absolute;top:0;right:0;left:0;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;height:100%;z-index:1}.md-nav--primary .md-nav__item,.md-nav--primary .md-nav__title{font-size:1.6rem;line-height:1.5}html .md-nav--primary .md-nav__title{position:relative;height:11.2rem;padding:6rem 1.6rem .4rem;background-color:rgba(0,0,0,.07);color:rgba(0,0,0,.54);font-weight:400;line-height:4.8rem;white-space:nowrap;cursor:pointer}html .md-nav--primary .md-nav__title:before{display:block;position:absolute;top:.4rem;left:.4rem;width:4rem;height:4rem;color:rgba(0,0,0,.54)}html .md-nav--primary .md-nav__title~.md-nav__list{background:-webkit-linear-gradient(top,#fff 10%,hsla(0,0%,100%,0)),-webkit-linear-gradient(top,rgba(0,0,0,.26),rgba(0,0,0,.07) 35%,transparent 60%);background:linear-gradient(180deg,#fff 10%,hsla(0,0%,100%,0)),linear-gradient(180deg,rgba(0,0,0,.26),rgba(0,0,0,.07) 35%,transparent 60%);background-attachment:local,scroll;background-color:#fff;background-repeat:no-repeat;background-size:100% 2rem,100% 1rem;box-shadow:inset 0 .1rem 0 rgba(0,0,0,.07)}html .md-nav--primary .md-nav__title~.md-nav__list>.md-nav__item:first-child{border-top:0}html .md-nav--primary .md-nav__title--site{position:relative;background-color:#3f51b5;color:#fff}html .md-nav--primary .md-nav__title--site .md-nav__button{display:block;position:absolute;top:.4rem;left:.4rem;width:6.4rem;height:6.4rem;font-size:4.8rem}html .md-nav--primary .md-nav__title--site:before{display:none}.md-nav--primary .md-nav__list{-webkit-box-flex:1;-ms-flex:1;flex:1;overflow-y:auto}.md-nav--primary .md-nav__item{padding:0;border-top:.1rem solid rgba(0,0,0,.07)}.md-nav--primary .md-nav__item--nested>.md-nav__link{padding-right:4.8rem}.md-nav--primary .md-nav__item--nested>.md-nav__link:after{content:"keyboard_arrow_right"}.md-nav--primary .md-nav__link{position:relative;margin-top:0;padding:1.6rem}.md-nav--primary .md-nav__link:after{position:absolute;top:50%;right:1.2rem;margin-top:-1.2rem;color:rgba(0,0,0,.54);font-size:2.4rem}.md-nav--primary .md-nav__link:focus:after,.md-nav--primary .md-nav__link:hover:after{color:inherit}.md-nav--primary .md-nav--secondary .md-nav__link{position:static}.md-nav--primary .md-nav--secondary .md-nav{position:static;background-color:transparent}.md-nav--primary .md-nav--secondary .md-nav .md-nav__link{padding-left:2.8rem}.md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav__link{padding-left:4rem}.md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav .md-nav__link{padding-left:5.2rem}.md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav .md-nav .md-nav__link{padding-left:6.4rem}.md-nav__toggle~.md-nav{display:none}.csstransforms3d .md-nav__toggle~.md-nav{-webkit-transform:translateX(100%);transform:translateX(100%);-webkit-transition:opacity .125s .05s,-webkit-transform .25s cubic-bezier(.8,0,.6,1);transition:opacity .125s .05s,-webkit-transform .25s cubic-bezier(.8,0,.6,1);transition:transform .25s cubic-bezier(.8,0,.6,1),opacity .125s .05s;transition:transform .25s cubic-bezier(.8,0,.6,1),opacity .125s .05s,-webkit-transform .25s cubic-bezier(.8,0,.6,1);opacity:0}.csstransforms3d .md-nav__toggle~.md-nav,.md-nav__toggle:checked~.md-nav{display:-webkit-box;display:-ms-flexbox;display:flex}.csstransforms3d .md-nav__toggle:checked~.md-nav{-webkit-transform:translateX(0);transform:translateX(0);-webkit-transition:opacity .125s .125s,-webkit-transform .25s cubic-bezier(.4,0,.2,1);transition:opacity .125s .125s,-webkit-transform .25s cubic-bezier(.4,0,.2,1);transition:transform .25s cubic-bezier(.4,0,.2,1),opacity .125s .125s;transition:transform .25s cubic-bezier(.4,0,.2,1),opacity .125s .125s,-webkit-transform .25s cubic-bezier(.4,0,.2,1);opacity:1}.md-sidebar--primary{position:fixed;top:0;left:-24.2rem;width:24.2rem;height:100%;-webkit-transform:translateX(0);transform:translateX(0);-webkit-transition:box-shadow .25s,-webkit-transform .25s cubic-bezier(.4,0,.2,1);transition:box-shadow .25s,-webkit-transform .25s cubic-bezier(.4,0,.2,1);transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .25s;transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .25s,-webkit-transform .25s cubic-bezier(.4,0,.2,1);background-color:#fff;z-index:2}.no-csstransforms3d .md-sidebar--primary{display:none}[data-md-toggle=drawer]:checked~.md-container .md-sidebar--primary{box-shadow:0 8px 10px 1px rgba(0,0,0,.14),0 3px 14px 2px rgba(0,0,0,.12),0 5px 5px -3px rgba(0,0,0,.4);-webkit-transform:translateX(24.2rem);transform:translateX(24.2rem)}.no-csstransforms3d [data-md-toggle=drawer]:checked~.md-container .md-sidebar--primary{display:block}.md-sidebar--primary .md-sidebar__scrollwrap{overflow:hidden;position:absolute;top:0;right:0;bottom:0;left:0;margin:0}.md-tabs{display:none}}@media only screen and (min-width:60em){.md-content{margin-right:24.2rem}.md-header-nav__button.md-icon--search{display:none}.md-header-nav__source{display:block;width:23rem;max-width:23rem;padding-right:1.2rem}.md-search{margin-right:2.8rem;padding:.4rem}.md-search__overlay{position:fixed;top:0;left:0;width:0;height:0;-webkit-transition:width 0s .25s,height 0s .25s,opacity .25s;transition:width 0s .25s,height 0s .25s,opacity .25s;background-color:rgba(0,0,0,.54);cursor:pointer}[data-md-toggle=search]:checked~.md-header .md-search__overlay{width:100%;height:100%;-webkit-transition:width 0s,height 0s,opacity .25s;transition:width 0s,height 0s,opacity .25s;opacity:1}.md-search__inner{position:relative}.md-search__form{width:23rem;float:right;-webkit-transition:width .25s cubic-bezier(.1,.7,.1,1);transition:width .25s cubic-bezier(.1,.7,.1,1);border-radius:.2rem}.md-search__input{width:100%;height:4rem;padding-left:4.8rem;-webkit-transition:background-color .25s cubic-bezier(.1,.7,.1,1),color .25s cubic-bezier(.1,.7,.1,1);transition:background-color .25s cubic-bezier(.1,.7,.1,1),color .25s cubic-bezier(.1,.7,.1,1);border-radius:.2rem;background-color:rgba(0,0,0,.26);color:#fff;font-size:1.6rem}.md-search__input+.md-search__icon,.md-search__input::-webkit-input-placeholder{color:#fff}.md-search__input+.md-search__icon,.md-search__input::-moz-placeholder{color:#fff}.md-search__input+.md-search__icon,.md-search__input:-ms-input-placeholder{color:#fff}.md-search__input+.md-search__icon,.md-search__input::placeholder{color:#fff}.md-search__input:hover{background-color:hsla(0,0%,100%,.12)}[data-md-toggle=search]:checked~.md-header .md-search__input{border-radius:.2rem .2rem 0 0;background-color:#fff;color:rgba(0,0,0,.87);text-overflow:none}[data-md-toggle=search]:checked~.md-header .md-search__input+.md-search__icon,[data-md-toggle=search]:checked~.md-header .md-search__input::-webkit-input-placeholder{color:rgba(0,0,0,.54)}[data-md-toggle=search]:checked~.md-header .md-search__input+.md-search__icon,[data-md-toggle=search]:checked~.md-header .md-search__input::-moz-placeholder{color:rgba(0,0,0,.54)}[data-md-toggle=search]:checked~.md-header .md-search__input+.md-search__icon,[data-md-toggle=search]:checked~.md-header .md-search__input:-ms-input-placeholder{color:rgba(0,0,0,.54)}[data-md-toggle=search]:checked~.md-header .md-search__input+.md-search__icon,[data-md-toggle=search]:checked~.md-header .md-search__input::placeholder{color:rgba(0,0,0,.54)}.md-search__output{top:4rem;-webkit-transition:opacity .4s;transition:opacity .4s;opacity:0}[data-md-toggle=search]:checked~.md-header .md-search__output{box-shadow:0 6px 10px 0 rgba(0,0,0,.14),0 1px 18px 0 rgba(0,0,0,.12),0 3px 5px -1px rgba(0,0,0,.4);opacity:1}.md-search__scrollwrap{max-height:0}[data-md-toggle=search]:checked~.md-header .md-search__scrollwrap{max-height:75vh}.md-search__scrollwrap::-webkit-scrollbar{width:.4rem;height:.4rem}.md-search__scrollwrap::-webkit-scrollbar-thumb{background-color:rgba(0,0,0,.26)}.md-search__scrollwrap::-webkit-scrollbar-thumb:hover{background-color:#536dfe}.md-search-result__article,.md-search-result__meta{padding-left:4.8rem}.md-sidebar--secondary{display:block;margin-left:100%;-webkit-transform:translate(-100%);transform:translate(-100%)}}@media only screen and (min-width:76.25em){.md-content{margin-left:24.2rem}.md-content__inner{margin-right:2.4rem;margin-left:2.4rem}.md-header{box-shadow:none}.md-header[data-md-state=shadow]{box-shadow:0 2px 2px 0 rgba(0,0,0,.14),0 1px 5px 0 rgba(0,0,0,.12),0 3px 1px -2px rgba(0,0,0,.2)}.md-header-nav__button.md-icon--menu{display:none}.md-nav[data-md-state=animate]{-webkit-transition:max-height .25s cubic-bezier(.86,0,.07,1);transition:max-height .25s cubic-bezier(.86,0,.07,1)}.md-nav__toggle~.md-nav{max-height:0;overflow:hidden}.md-nav[data-md-state=expand],.md-nav__toggle:checked~.md-nav{max-height:100%}.md-nav__item--nested>.md-nav>.md-nav__title{display:none}.md-nav__item--nested>.md-nav__link:after{display:inline-block;-webkit-transform-origin:.45em .45em;transform-origin:.45em .45em;-webkit-transform-style:preserve-3d;transform-style:preserve-3d;vertical-align:-.125em}.js .md-nav__item--nested>.md-nav__link:after{-webkit-transition:-webkit-transform .4s;transition:-webkit-transform .4s;transition:transform .4s;transition:transform .4s,-webkit-transform .4s}.md-nav__item--nested .md-nav__toggle:checked~.md-nav__link:after{-webkit-transform:rotateX(180deg);transform:rotateX(180deg)}.md-search__scrollwrap,[data-md-toggle=search]:checked~.md-header .md-search__form{width:68.8rem}.md-sidebar--secondary{margin-left:122rem}.md-sidebar__inner{border-right:.1rem solid rgba(0,0,0,.07)}.md-tabs~.md-main .md-nav--primary>.md-nav__list>.md-nav__item--nested{font-size:0}.md-tabs--active~.md-main .md-nav--primary .md-nav__title--site{display:none}.md-tabs--active~.md-main .md-nav--primary>.md-nav__list>.md-nav__item{font-size:0}.md-tabs--active~.md-main .md-nav--primary>.md-nav__list>.md-nav__item--nested{display:none;font-size:1.4rem;overflow:auto}.md-tabs--active~.md-main .md-nav--primary>.md-nav__list>.md-nav__item--nested>.md-nav__link{margin-top:1.2rem;font-weight:700;pointer-events:none}.md-tabs--active~.md-main .md-nav--primary>.md-nav__list>.md-nav__item--nested>.md-nav__link:after{display:none}.md-tabs--active~.md-main .md-nav--primary>.md-nav__list>.md-nav__item--active{display:block}.md-tabs--active~.md-main .md-nav[data-md-level="1"]{max-height:none}.md-tabs--active~.md-main .md-nav[data-md-level="1"]>.md-nav__list>.md-nav__item{padding-left:0}}@media only screen and (max-width:29.9375em){.md-header-nav__parent{display:none}[data-md-toggle=search]:checked~.md-header .md-search__overlay{-webkit-transform:scale(45);transform:scale(45)}}@media only screen and (min-width:45em){.md-footer-nav__link{width:50%}.md-footer-copyright{max-width:75%;float:left}.md-footer-social{padding:1.2rem 0;float:right}}@media only screen and (min-width:30em) and (max-width:44.9375em){[data-md-toggle=search]:checked~.md-header .md-search__overlay{-webkit-transform:scale(60);transform:scale(60)}}@media only screen and (min-width:45em) and (max-width:59.9375em){[data-md-toggle=search]:checked~.md-header .md-search__overlay{-webkit-transform:scale(75);transform:scale(75)}}@media only screen and (min-width:60em) and (max-width:76.1875em){.md-search__scrollwrap,[data-md-toggle=search]:checked~.md-header .md-search__form{width:46.8rem}.md-search-result__teaser{max-height:5rem;-webkit-line-clamp:3}}
\ No newline at end of file
diff --git a/material/base.html b/material/base.html
index 9b6cd1670..109d0b0ea 100644
--- a/material/base.html
+++ b/material/base.html
@@ -38,7 +38,7 @@
       <script src="{{ base_url }}/assets/javascripts/modernizr-56ade86843.js"></script>
     {% endblock %}
     {% block styles %}
-      <link rel="stylesheet" href="{{ base_url }}/assets/stylesheets/application-3d8b235f56.css">
+      <link rel="stylesheet" href="{{ base_url }}/assets/stylesheets/application-e4737a159d.css">
       {% if config.extra.palette %}
         <link rel="stylesheet" href="{{ base_url }}/assets/stylesheets/application-f78e5cb881.palette.css">
       {% endif %}
@@ -150,7 +150,7 @@
       {% endblock %}
     </div>
     {% block scripts %}
-      <script src="{{ base_url }}/assets/javascripts/application-88de899dd7.js"></script>
+      <script src="{{ base_url }}/assets/javascripts/application-7018102a8b.js"></script>
       <script>app.initialize({url:{base:"{{ base_url }}"}})</script>
       {% for path in extra_javascript %}
         <script src="{{ path }}"></script>
diff --git a/material/partials/search.html b/material/partials/search.html
index 37dabb27b..39a239c13 100644
--- a/material/partials/search.html
+++ b/material/partials/search.html
@@ -1,6 +1,6 @@
 {% import "partials/language.html" as lang %}
 <div class="md-search" data-md-component="search">
-  <div class="md-search__overlay"></div>
+  <label class="md-search__overlay" for="search"></label>
   <div class="md-search__inner">
     <form class="md-search__form" name="search">
       <input type="text" class="md-search__input" name="query" required placeholder="{{ lang.t('search.placeholder') }}" accesskey="s" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query">
diff --git a/src/assets/javascripts/application.js b/src/assets/javascripts/application.js
index 27d4b9cb2..13c9ac380 100644
--- a/src/assets/javascripts/application.js
+++ b/src/assets/javascripts/application.js
@@ -203,18 +203,6 @@ function initialize(config) { // eslint-disable-line func-style
       }
     }))
 
-  /* Listener: close search when clicking outside */
-  new Material.Event.MatchMedia("(min-width: 960px)",
-    new Material.Event.Listener(document.body, "click", () => {
-      const toggle = document.querySelector("[data-md-toggle=search]")
-      if (!(toggle instanceof HTMLInputElement))
-        throw new ReferenceError
-      if (toggle.checked) {
-        toggle.checked = false
-        toggle.dispatchEvent(new CustomEvent("change"))
-      }
-    }))
-
   /* Listener: keyboard handlers */
   new Material.Event.Listener(window, "keydown", ev => {
     const toggle = document.querySelector("[data-md-toggle=search]")
diff --git a/src/assets/stylesheets/layout/_search.scss b/src/assets/stylesheets/layout/_search.scss
index 2d4a45273..3059d5a19 100644
--- a/src/assets/stylesheets/layout/_search.scss
+++ b/src/assets/stylesheets/layout/_search.scss
@@ -48,12 +48,11 @@ $md-toggle__search--checked:
 
   // Search modal overlay
   &__overlay {
-    display: none;
-    pointer-events: none;
+    opacity: 0;
+    z-index: 1;
 
     // [tablet portrait -]: Full-screen search bar
     @include break-to-device(tablet portrait) {
-      display: block;
       position: absolute;
       top: 0.4rem;
       left: 0.4rem;
@@ -65,9 +64,8 @@ $md-toggle__search--checked:
         opacity   0.2s 0.2s;
       border-radius: 2rem;
       background-color: $md-color-white;
-      opacity: 0;
       overflow: hidden;
-      z-index: 1;
+      pointer-events: none;
 
       // Expanded overlay
       #{$md-toggle__search--checked} & {
@@ -96,6 +94,32 @@ $md-toggle__search--checked:
         transform: scale(75);
       }
     }
+
+    // [tablet landscape +]: Overlay for better focus on search
+    @include break-from-device(tablet landscape) {
+      position: fixed;
+      top: 0;
+      left: 0;
+      width: 0;
+      height: 0;
+      transition:
+        width   0s 0.25s,
+        height  0s 0.25s,
+        opacity 0.25s;
+      background-color: $md-color-black--light;
+      cursor: pointer;
+
+      // Expanded overlay
+      #{$md-toggle__search--checked} & {
+        width: 100%;
+        height: 100%;
+        transition:
+          width   0s,
+          height  0s,
+          opacity 0.25s;
+        opacity: 1;
+      }
+    }
   }
 
   // Search modal wrapper
@@ -305,6 +329,7 @@ $md-toggle__search--checked:
     width: 100%;
     border-radius: 0 0 0.2rem 0.2rem;
     overflow: hidden;
+    z-index: 1;
 
     // [tablet portrait -]: Full-screen search bar
     @include break-to-device(tablet portrait) {
diff --git a/src/partials/search.html b/src/partials/search.html
index 650829b7a..4a3d859c1 100644
--- a/src/partials/search.html
+++ b/src/partials/search.html
@@ -24,7 +24,7 @@
 
 <!-- Search interface -->
 <div class="md-search" data-md-component="search">
-  <div class="md-search__overlay"></div>
+  <label class="md-search__overlay" for="search"></label>
   <div class="md-search__inner">
     <form class="md-search__form" name="search">
       <input type="text" class="md-search__input" name="query"