More tests for gradients rule
More tests for gradients rule

kmulvey/bootstrap-csslint,sergeychernyshev/csslint,Arcanemagus/csslint,lovemeblender/csslint,YanickNorman/csslint,YanickNorman/csslint,dashk/csslint,krahman/csslint,malept/csslint,scott1028/csslint,sergeychernyshev/csslint,dmi3y/csslint,SimenB/csslint,blackberry-webworks/csslint,codeclimate/csslint,lovemeblender/csslint,dashk/csslint,SimenB/csslint,codeclimate/csslint,malept/csslint,scott1028/csslint,Arcanemagus/csslint