Merge m-c to ux

--HG--
rename : browser/themes/windows/browser.css => browser/themes/shared/identity-block.inc.css
Backout the second part of bug 877767 ( 0d4883c469e6 ) per bug 888615 comment 4, rs=backout
Bug 888571 - Don't load CustomizeMode.jsm upon startup. r=MattN,dao

--HG--
extra : rebase_source : 3faf6d921958e0baae0e9495bba7c6481e1bd790
Backed out changeset ee81f5bac27a (bug 888571)
Merge mozilla-central and ux
Bug 888571 - Don't load CustomizeMode.jsm upon startup. r=MattN,dao
Bug 888766 - Windows 7 should have the correct icons, r=jaws
Bug 888594 - Back/forward buttons in library should have the right icon, r=jaws
Bug 886281 - Constrain the absolutely positioned glass fog using overflow-y: hidden to avoid overlapping layers, r=jaws
Merge mozilla-central and ux
Bug 878898: rename 'name' and 'description' properties to 'label' and 'tooltiptext' respectively. r=jaws
Bug 889610 - Aero glass fog cut off in customization mode on Windows 7, r=jaws

--HG--
extra : rebase_source : 653b90558a98f754b80fd6a4918fb5f974d52cbe
Bug 888800 - Should have default set of items present in the nav-bar, r=Unfocused,f=MattN

--HG--
extra : rebase_source : 04e584a8e3f4201b334cf92ac1fd05f650fb908d
Bug 889597 - Hide panelUI by default to improve ts_paint, r=MattN,jaws
Automated merge with https://hg.mozilla.org/mozilla-central
Bug 888775 - Windows 7 with LWT shifts down the tabs because of the add-on bar binding, r=jaws

--HG--
extra : rebase_source : 53c977899e6b627aa9872d1e200a821d145feb24
Merge mozilla-central and ux
Bug 890356 - After exiting Lion fullscreen, context menus on toolbars no longer work, r=dao
Merge mozilla-central and ux
Automated merge with https://hg.mozilla.org/mozilla-central