Customizer: restyle the customizer UI to use existing inline-expanding styles (based on menus ui).
Color schemes: remove customizer color files, as we're not using color schemes in the customizer now. Slight restructuring of sass files to allow for 1 to 1 file processing, if anyone doesn't want to use grunt for compiling (colors.scss should map to admin-colors.css for each scheme).



git-svn-id: https://plugins.svn.wordpress.org/mp6/trunk@797046 b8457f37-d9ea-0310-8a92-e5e31aec5664