Enyo 2265: added close button on TabBar

TabBar is still a work in progress. Tested on Linux Firefox 17, chromium 27 and Windows 7 IE8-10, Firefox 21

* ENYO-2265: recompiled css (HEAD, origin/ENYO-2265, ENYO-2265)
* ENYO-2265: fix close button shape on all browser
* ENYO-2265: Merge remote-tracking branch 'origin/master' into ENYO-2265
* ENYO-2265: Fix tab removal corner cases
* ENYO-2265: button margin is required for FF
* ENYO-2265: Fixed jshint errors
* ENYO-2265: sample creates tabs at render time
* ENYO-2265: Fixed dissolve div location
* ENYO-2265: closing active tab will raise neighnour tab
* ENYO-2265: fix resolveTab when using index
* ENYO-2265: small css adjustments
* ENYO-2265: Added close button to tab items
* ENYO-2265: removed debug logs
* ENYO-2265: fiddle padding to hide bottom of button under the rug
* ENYO-2265: blend dissolve in tab when mouse hovers inside of tab but outside of dissolve
* ENYO-2265: avoid ugly "detached" tab with smal font
* ENYO-2265: reduce blank space at the top and bottom of tab bar

Enyo-DCO-1.1-Signed-off-by: Dominique Dumont <dominique.dumont@hp.com>