SignupController: add an explicit action for invite
SignupController: add an explicit action for invite

Denniskevin/lobsters,Bloc/lobsters,derekprior/lobsters,Bloc/lobsters,saitodisse/lobsters,owen/lobsters,saitodisse/lobsters,mojacc/lobsters,ABorgna/lobsters,ABorgna/lobsters,nh-platform/barnacles,owen/lobsters,ABorgna/lobsters,ukazap/lobsters,Denniskevin/lobsters,Denniskevin/lobsters,sboklund/munu.co,nh-platform/barnacles,sboklund/munu.co,ukazap/lobsters,Denniskevin/lobsters,derekprior/lobsters,saitodisse/lobsters,Bloc/lobsters,derekprior/lobsters,mojacc/lobsters,GetStream/lobsters,nh-platform/barnacles,GetStream/lobsters,saitodisse/lobsters,nh-platform/barnacles,mojacc/lobsters,ukazap/lobsters,ABorgna/lobsters,mojacc/lobsters,GetStream/lobsters,ukazap/lobsters,derekprior/lobsters,chaica/lobsters,owen/lobsters,sboklund/munu.co,sboklund/munu.co,sboklund/munu,GetStream/lobsters,sboklund/munu,Bloc/lobsters,chaica/lobsters,sboklund/munu,sboklund/munu,chaica/lobsters,owen/lobsters,chaica/lobsters