added adapter.js, fixed turn server support for firefox
added adapter.js, fixed turn server support for firefox

mauricionr/easyrtc,linagora/easyrtc,cristiancvanega/easyrtc,bgawande/easyrtc,udayshankar3/nodeapp,bgawande/easyrtc,ash24mish/easyrtc,Sylaps/easyrtc,charlesAtNctu/easyrtc,thiagocarreno/easyrtc,bgawande/easyrtc,Sylaps/easyrtc,Hocalwire/easyrtc,Hocalwire/easyrtc,priologic/easyrtc,cristiancvanega/easyrtc,ash24mish/easyrtc,bradparks/easyrtc,bradparks/easyrtc,linagora/easyrtc,ash24mish/easyrtc,mauricionr/easyrtc,priologic/easyrtc,chaudhary4k4/easyRTC,charlesAtNctu/easyrtc,thiagocarreno/easyrtc,Hocalwire/easyrtc,charlesAtNctu/easyrtc,hthetiot/easyrtc,hthetiot/easyrtc,priologic/easyrtc,ash24mish/easyrtc,logoff/easyrtc,nmai/easyrtc,xirsys/easyrtc,xirsys/easyrtc,thiagocarreno/easyrtc,logoff/easyrtc,priologic/easyrtc,Hocalwire/easyrtc,mauricionr/easyrtc,Sylaps/easyrtc,chaudhary4k4/easyRTC,udayshankar3/nodeapp,logoff/easyrtc,bradparks/easyrtc,cristiancvanega/easyrtc,nmai/easyrtc,nmai/easyrtc,hthetiot/easyrtc