Fixes #7213 Collapse plugin does not correctly set the "collapsed" class on accordion heading links
Merge remote-tracking branch 'bootstrap/3.0.0-wip' into 3.0.0-wip

Conflicts:
	js/tests/unit/bootstrap-collapse.js
Fixed mixin btn-pseudo-state background for [disabled] buttons
Merge remote-tracking branch 'bootstrap/3.0.0-wip' into 3.0.0-wip

Conflicts:
	js/bootstrap-collapse.js
Merge remote-tracking branch 'bootstrap/3.0.0-wip' into 3.0.0-wip
Move Glyphicons into their own repo

Removes the icon fonts and associated docs and LESS code from the core
repo and into twbs/bootstrap-glyphicons.
Fix line breaks on add-ons with spaces
Merge pull request #8283 from luishdez/hotfix/add-on-breaks

Fix line breaks on add-ons with spaces
Add callout to docs: 3rd-party libs not supported
Add callout to docs: LESS compiler support
Add a link to the mailing list for JS help
refactor responsive-utilities slightly
Add IDs, adjust text
fix "Data attributes" link in JS docs sidenav

`#js-data-attributes` => `#js-data-attrs`
fix ID of Normalize heading in docs so that the sidenav can find it
Recess welcome
Merge pull request #8294 from cvrebert/patch-2

fix ID of Normalize heading in docs so that the sidenav can find it
Merge pull request #8291 from cvrebert/refactor

refactor responsive-utilities slightly
Move mixin to mixins.less
Merge pull request #8292 from cvrebert/patch-1

fix "Data attributes" link in JS docs sidenav