profile message and mention icons
Merge pull request #4374 from svbergerem/profile-message-and-mention-icons

Tidy up profile sidebar
Add header to the single post view
Add images, fix layout rendering
improve design
add missing sprite file
Add hacky bootstrap header fix for single post view.
Implement new single post view.
Questionable css for the new single post view.
Switch to new single post view.
Fix specs for new single post view.
Visual changes to the spv.
improve new SPV

* Hopefully fix OEmbed view
* Fix OpenGraph view
* Fix middle border
* Add spacing at the bottom
* Fix comment styles by not including old SPV styles for them (TODO: maybe rescue some stuff there, like the code tag styling)
* Fix avatar size for default avatar
* Remove border below comment pane
* Fix overflow of post body with a lot of text
* Fix stylesheet inclusion
Import mixins.
Revert "Import mixins."

This reverts commit 1d6802bec43223606e1387d037658eb194c478fb.
Implement a way to deactivate hovercards.
Fix typo.
User entypo font for large icons..
Precompile the assets for jasmine too
Deactivate content collapsing for SPV.