prefer "gray" to "grey" when converting colors to names
prefer "gray" to "grey" when converting colors to names

For consistency with Sass.

webdev1001/libsass,webdev1001/libsass,TBAPI-0KA/NSass,am11/libsass,saper/libsass,am11/libsass,TBAPI-0KA/NSass,saper/libsass,admire93/libsass-python,khchanel/libsass,webdev1001/libsass,FishingCactus/libsass,mikebarkas/libsass,FishingCactus/libsass,TBAPI-0KA/NSass,technoAri/libsass,errorx666/libsass,FishingCactus/libsass,mikebarkas/libsass,panicinc/libsass,mtwebster/mint-libsass,mikebarkas/libsass,mtwebster/mint-libsass,technoAri/libsass,mtwebster/mint-libsass,webdev1001/libsass,mtwebster/mint-libsass,saper/libsass,dahlia/libsass-python,khchanel/libsass,mikebarkas/libsass,saper/libsass,errorx666/libsass,dahlia/libsass-python,admire93/libsass-python,khchanel/libsass,technoAri/libsass,am11/libsass,khchanel/libsass,TBAPI-0KA/NSass,mtwebster/mint-libsass,technoAri/libsass,webdev1001/libsass,TBAPI-0KA/NSass,saper/libsass,panicinc/libsass,FishingCactus/libsass,errorx666/libsass,errorx666/libsass,am11/libsass,panicinc/libsass,panicinc/libsass,mikebarkas/libsass,FishingCactus/libsass,khchanel/libsass,am11/libsass,TBAPI-0KA/NSass,technoAri/libsass,panicinc/libsass