Update README.md
v2.0 update
delete old sass modules
delete Useful Links and update Readme, fix some bugs
Retina sintax fix

https://github.com/designmodo/Flat-UI/issues/11
readme update
jquery ui update, removed unused components
updated palette module, added color swatches
remove whitespace
video, pallet fix
Changelog 2.0
https font fix
Fix invalid less syntax for keyframes
Merge pull request #38 from timclipsham/fix-syntax-error

Fix invalid less syntax for keyframes