More work on the new class hierarchy.
More work on the new class hierarchy.

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