Add OSX testing to travis, cache node_modules
Add OSX testing to travis, cache node_modules

ScoutLink/lounge,ScoutLink/lounge,metsjeesus/lounge,metsjeesus/lounge,realies/lounge,realies/lounge,metsjeesus/lounge,realies/lounge,williamboman/lounge,sebastiencs/lounge,MaxLeiter/lounge,williamboman/lounge,williamboman/lounge,MaxLeiter/lounge,ScoutLink/lounge,FryDay/lounge,libertysoft3/lounge-autoconnect,MaxLeiter/lounge,sebastiencs/lounge,FryDay/lounge,FryDay/lounge,sebastiencs/lounge,libertysoft3/lounge-autoconnect,thelounge/lounge,rockhouse/lounge,rockhouse/lounge,libertysoft3/lounge-autoconnect,thelounge/lounge,rockhouse/lounge