src
Doc: Added missing forward icon
Doc: Matched icon labels with classes
Doc: Synchronized icons label and class word order
Doc: Removed arrow class from location icon
Doc: Reordered icons existing code
Doc: Typo in attention icon
Doc: Removed missing icons from existing code
Doc: Icon class typos
Doc: Added existing code for basic social icons
Prevent menu button color inheritance.

Buttons within .ui.menu, that are styled above anchor (`a`) tag, are colored inappropriately.

This fixes it.
Fixed labeled menu icon button icon positioning.

A .button.labeled within .ui.menu > .item has icon vertically aligned closer to bottom, not middle.

This fixes it.
In-Menu input action button corrections.

Action button within menu had some sizing and positioning issues.

This attempts to fix it.

Tested with large, normal, small menus; .button, .icon.button, .labeled.button. All 9 combos.
Merge branch 'css' of github.com:Semantic-Org/Semantic-UI into css

Conflicts:
	build/less/themes/basic/elements/button.variables
	build/minified/modules/dropdown.min.js
	build/minified/themes/basic/elements/button.variables
	build/packaged/javascript/semantic.js
	build/packaged/themes/basic/elements/button.variables
	build/uncompressed/themes/basic/elements/button.variables
	rtl/less/themes/basic/elements/button.variables
	rtl/minified/themes/basic/elements/button.variables
	rtl/packaged/themes/basic/elements/button.variables
	rtl/uncompressed/themes/basic/elements/button.variables
Merge pull request #551 from mishak87/patch-2

Doc was missing forward icon in Media Actions
Update CONTRIBUTING.md

Adds grunt to contributing docs
Toying with bower main path to test whether wildcard resolves correctly
prevent close icon style override
Menu: removes vendor prefixed properties
Merge pull request #556 from MohammadYounes/message

prevent close icon style override