dont enable rtp datachannels
track api updates in rtcpeerconnection
add sdp-jingle-json and precommit-hook deps
datachannel apis have improved
use .onended property of stream to handle removal of remote streams when peerconnection is closed
dont call answer twice
observe remote datachannel, too
bump hark version
data channels and remote volume via data channels
update bundled version
basic 1-1 p2p test
emit volume change
update deps; add tape
Merge pull request #5 from HenrikJoreteg/api_updates

Api updates