[Sass] Add some basic tests for css2sass. Not all of them pass right now.
[Sass] Add some basic tests for css2sass. Not all of them pass right now.

nazar-pc/haml,14113/sass,stefanpenner/haml,liquidmetal/sass,srawlins/sass,Andrey-Pavlov/sass,Anshdesire/sass,DanteKaris/sass,askl56/sass,JuanitoFatas/sass,amatsuda/haml,tangposmarvin/sass,HugoRLopes/sass,OrenBochman/sass,askl56/sass,Nzaga/sass,concord-consortium/haml,keithpitty/haml,JuanitoFatas/sass,rammy7219/sass,stanhu/haml,xzyfer/sass,Galactix/sass,dg1dd1ngs/haml,jaroot32/sass,baiyanghese/sass,StephanieMak/sass,Industrys/sass,StephanieMak/sass,nicklima/sass,saper/sass,liquidmetal/sass,lmetla/sass,rammy7219/sass,nazar-pc/haml,stanhu/haml,OrenBochman/sass,ridixcr/sass,haml/haml,danielfein/sass,chriseppstein/haml,jaroot32/sass,keithpitty/haml,macressler/haml,cmpereirasi/sass,antonifs/sass,Industrys/sass,amitsuroliya/sass,ridixcr/sass,lmetla/sass,amitsuroliya/sass,nickg33/sass,briangonzalez/sass,haml/haml,xzyfer/sass,HugoRLopes/sass,chriseppstein/haml,dylannnn/sass,tenderlove/sass,haml/haml,purcell/haml,tangposmarvin/haml,MetaAshley/sass,srinivashappy/sass,hcatlin/sass,cmpereirasi/sass,antonifs/sass,tangposmarvin/sass,stewx/sass,macressler/haml,PMArtz92/sass,DanteKaris/sass,zaru/sass,oss-practice/sass,nickg33/sass,modulexcite/sass,dg1dd1ngs/haml,schneems/sass,Iamronan/sass,dylannnn/sass,modulexcite/sass,srinivashappy/sass,sideci-sample/sideci-sample-haml,hcatlin/sass,saper/sass,Galactix/sass,Anshdesire/sass,Nzaga/sass,schneems/sass,uniba/hamldoc_ja,chriseppstein/sass,Andrey-Pavlov/sass,PMArtz92/sass,nicklima/sass,Iamronan/sass,zaru/sass,tangposmarvin/haml,haml/haml,srawlins/sass,Ahnita/sass,Ahnita/sass,danielfein/sass,MetaAshley/sass,stewx/sass