Support 'site' action for new site streams beta feature
Support 'site' action for new site streams beta feature

See: http://dev.twitter.com/pages/site_streams

rneilson/node-twitter,FiftyThree/node-twitter,SteveUpton/ftwitter,gabfusi/node-twitter,santiperez/ntwitter,Shugardude/ntwitter2,desmondmorris/node-twitter,cesaregb/ntwitter,AvianFlu/ntwitter,timisbusy/ntwitter