Fixing 1px highlight glitch
Fixing Vertical Tabs and Active Tab Highlight

going with pseudo for the border since can't prevent the 3d anti
aliasing effect on the corners
Cleaning up x-tab-strip-spacer

:|
Merge remote-tracking branch 'origin/pr/666' into pr/666

* origin/pr/666:
  Cleaning up x-tab-strip-spacer
  Fixing Vertical Tabs and Active Tab Highlight
  Fixing 1px highlight glitch

Conflicts:
	manager/templates/default/css/index.css