Add Embed responsive utility
Merge branch 'responsive-embed' of https://github.com/boulox/bootstrap into boulox-responsive-embed

Conflicts:
	dist/css/bootstrap.css.map
	dist/css/bootstrap.min.css
Added .list-group-item.disabled

Added support for disabled List group item.
Update variables.less
Documents #10140
Merge branch 'master' into document_popover_focus
add posibillity to hover links and not background in list-groups
Fix UAs required message position on grouped radio buttons

Instead of not rendering the element at all with display:none, use opacity:0 and z-index:-1 so the radio element has a defined position on the document and user agents can show the required message in the right place.
Remove ./ from bower.json paths
Removed margin-bottom from last p of .blog-footer
.transition-timing-function Mixin
added .transition-timing-function(@timing-function) mixin, defaults to @timing-function.
grunt-contrib-jade@0.11.0
Run `grunt update-shrinkwrap`
Merge pull request #12926 from ZDroid/update-deps

grunt-contrib-jade@0.11.0
fix #12936
use quotes around all element attr vals in JS; fixes #12946
switch to grunt-css-flip for RTL CSS generation
Disable requireCamelCaseOrUpperCaseIdentifiers JSCS option completely, for now

Can't disable it just for the Gruntfile due to https://github.com/mdevils/node-jscs/issues/287
Merge pull request #12949 from twbs/use-our-grunt-plugin

switch to grunt-css-flip for RTL CSS generation
re-enable requireCamelCaseOrUpperCaseIdentifiers in JSCS & use `null` to override it for Gruntfile