added redirect_uri parameter to authentication call (github oauth support different sub paths of the official callback)
added redirect_uri parameter to authentication call (github oauth support different sub paths of the official callback)

pksunkara/octonode,bhanuc/octonode,dhinus/octonode,jeffwilcox/octonode,gitignorance/octonode,classeur/octonode,varung-optimus/octonode,MattCopenhaver/octonode,silverbux/octonode2,gigster-eng/octonode,valedaemon/octonode