Remove rubyforge references in gem spec
Remove rubyforge references in gem spec

zzak/rake,envato/rake,ruby/rake,askl56/rake,tmornini/rake,hsbt/rake,hsbt/rake,88rabbit/rake,utilum/rake,pjump/rake,taiganakagawa/rake,bentley/rake,ruby/rake,ipmobiletech/rake,codedogfish/rake,esasse/rake,Vanzct/rake,jaustinhughey/rake,envato/rake