Add compatibility with edge Rails. Thanks to Russell Norris for the patch.
Add compatibility with edge Rails. Thanks to Russell Norris for the patch.

git-svn-id: 4f3887ee22fa92c7515d4a1b1e550bc0e860970c@728 7063305b-7217-0410-af8c-cdc13e5119b9

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