move blue monday and pink flag skins into the src area.
Renamed files to SASS as part of #260
Added SASS code as per #260
Added grunt SASS task to build compresses skin css to dist
Added copy task to skin build #260
restructured skin sass and image folders
Built the new SASS skins into dist folder.
switched to grunt-contrib-sass
Added sass cache to gitignore
Enabled the sass caching again lol
Changed to SASS build nested css
Added cssmin task
Updated all examples to use new dist skin min.css