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.
Don't collapse comment content in the SPV.
Fix text decoration for action buttons.
Add divider between action buttons and content.
Add comment focus button.
Actually scroll to the comment box.
polish SPV a bit

* Move lock icon to the timestamp
* Add spacing around the interation icons
* Increased size of the interaction icons
* Pulled root post author next to reshare author
Add hover for single-post-actions and fix comment deletion links
enable tooltips in the new SPV
control icons just visible on hover
sass -> scss
Fix login page background.