Merge pull request #20 from Simulacrotron/master

fix for error on complementaryColor: where the degree value was not divi...
Updated podspec
Fixed for OSX - updated pod spec again
fixing build status image for travis ci

Image is now retina ready
Merge pull request #21 from haaakon/patch-1

fixing build status image for travis ci
Added color sorting
Updated to remove old Pod version, and added Gitter
Added test of alpha pointer before setting the alpha value (MKMapKit usage).
replaced tabs with spaces as in original source
Merge pull request #23 from klaas/master

Pull request for issue #22
Podspec bump