Fix Travis build
Fix Travis build

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