Fourteen Colors: move the color help text from the colors section to the individual controls, leveraging the addition of control descriptions in WordPress 4.0. 3.9 will still be supported, but will no longer display help text as a result of this change.

git-svn-id: https://plugins.svn.wordpress.org/fourteen-colors/trunk@978025 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fourteen Colors: Remove the mediaelements-genericons component that used Genericons for audio/video players to facilitate re-coloring them. As of WordPress 4.0 / Twenty Fourteen 1.2, this component has been merged into the core theme. Fourteen Colors will continue applying color changes to these, and needs a few tweaks to adapt.

git-svn-id: https://plugins.svn.wordpress.org/fourteen-colors/trunk@978027 b8457f37-d9ea-0310-8a92-e5e31aec5664