Document popover focus

Conflicts:
	docs/assets/js/docs.min.js

Remove ./ from bower.json paths

Fix transition-timing-function mixin

Conflicts:
	docs/assets/js/customize.min.js

add posibillity to hover links and not background in list-groups

Fix UAs required message position on grouped radio buttons

Moving the embed to it's own CSS file, moving the docs to the Components page with an example, fixing a Glyhpicons list problem in the docs

Things don't work with older versions.

Conflicts:
	dist/css/bootstrap.css.map
	dist/css/bootstrap.min.css
	docs/assets/js/customize.min.js
	docs/assets/js/docs.min.js
	docs/css.html
	docs/dist/css/bootstrap.css.map
	docs/dist/css/bootstrap.min.css

Fixes #12683: Remove the overflow: hidden; from the .panel-group > .panel because it apparently serves no purpose and cuts off nested dropdown menus.

Conflicts:
	dist/css/bootstrap.css.map
	docs/assets/js/raw-files.min.js
	docs/dist/css/bootstrap.css.map

Conflicts:
	less/list-group.less

Safari renders this fine for one reason or another, but Chrome still renders the media query styles to make tables responsive. This change scopes them to screen devices only, so printing looks boss everywhere.

Removed margin-bottom from last p of .blog-footer