Tabs on the sidebar, the beginning based on @svenfuchs work
Display only jobs and workers in tabs
some style tweaks to the sidebar tabs /cc @drogus
un-bold the non-active tab in the sidebar
Fix specs, add styling for firefox
Don't render links if slug is missing
Merge branch 'sidebar-tabs'

Conflicts:
	assets/scripts/spec/support/conditions.coffee
For some reason passing event breaks on chrome