refs TryGhost/Ghost#7860
- removes post type filter links
- adds dropdown filters for post type, author, and tag
- replaces custom refresh on query params change with Ember's standard `refreshModel` config
no issue
- `liquid-wormhole` changed the class of it's default destination element which meant that one of our styles resulted in it overlaying the whole app and preventing anything from being clicked after closing a modal
no issue
- adds [ember-inline-svg](https://github.com/minutebase/ember-inline-svg) addon
- configure svg path to `public/assets/icons` so that icons can be accessed directly, eg `{{inline-svg "plane.svg"}}`
- configure svg optimization to remove title, dimensions, and xmlns element (not needed for inline svg)
- add existing icons as used on Ghost.org
closes https://github.com/TryGhost/Ghost/issues/8055
- use `expired` if the date is in the past, otherwise `expires`
- fix mirage factories to use `moment.valueOf` instead of `moment.unix` for invite `expires` attributes
no issue
- the index route/controller/template was initially used for a separate loading state within the posts screen layout, this isn't necessary however as the same effect can be achieved with the `posts-loading.hbs` template
- this change also lays the groundwork for more complex dropdown-based filters as it enables the filters and query params to live in the same controller+template
no issue
- changes to layout meant that every page was automatically requested upon loading the content screen, this changes the infinite scroll trigger to match the new scrollable element
no issue
- we had [previously reverted](787646a4a2) the use of `yarn` on Travis as we suspected it as being a culprit in failing editor builds, that wasn't the real cause so this switches us back to using `yarn`
no issue
- persisting the broccoli cache should dramatically speed up the client builds on Travis as it will only need to rebuild changed files and those that depend on them
