Merge pull request #65 from hoxxep/v0.6.0-dev

(v0.6.0-dev) marge v0.5.5 and use gradients on ripples.
Merge pull request #66 from hoxxep/v0.6.0-dev

(v0.6.0-dev) Added stylus support with grunt and less2style (#59)
LESS: Escape '!important' .waves-notransition #59
Merge branch 'v0.6.0-dev' of https://github.com/fians/Waves into v0.6.0-dev