Add LESS-ify'd MP6 branch, with my changes this time. This uses Grunt (specifically
`grunt less:colors`, or `grunt watch`) to generate color schemes based on 3 color variables.



git-svn-id: https://plugins.svn.wordpress.org/mp6/branches/less-colors@760261 b8457f37-d9ea-0310-8a92-e5e31aec5664