Remove compass, compass-rails dependencies

Since 62885244 we rely on only one CSS mixin library: Bourbon.

User Story # 11315

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Bump livingstyleguide to 1.2.0.pre.1

This release series no longer depends on Compass.

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Test empty element rendering if no WP assignee is present
Render empty element if no WP assignee is available
Remove cancel button from new comment in wp details.
Merge pull request #1798 from opf/feature/14743_keyboard_focus_on_unassigned_assignee_possible

14743 keyboard focus on unassigned WP possible
Focus only focusable elements
Allow to trigger a focus update
Update watcher focus after watcher removal

After removing a watcher either the next available watcher or, if no watcher is available, the watcher selection is focused.
Select first available watcher or watcher selection on load
Hold focus on watcher selection
Merge pull request #1807 from opf/fix/remove-cancel-button-from-new-comment
Merge pull request #1794 from opf/feature/remove-compass-framework
Version on the WP overview is now link
Use PathHelper for linking the version
Added tests for property with format user and version
Merge pull request #1780 from opf/feature/14006-version-has-no-link
Add labels to WP toolbar buttons
Add button titles for mouse users
Refactor detail pane state retrieval