pom: add WebRTC dependencies

Change-Id: I0182e20d3f21f0f94b1fd382bbeeb91f2ef75e3a
Add WebRtcSession

Change-Id: I344fc678e9e9e04d32c459ab8d8abd95371de40b
Start and finish a WebRtcSession in MainActivity

Change-Id: Ic7d885945adc5302d4039c7f16f5060687d9662e
Start two WebRTC sessions

Change-Id: I78f1112d965f4610cf8fe91440eefc406deebd9d
Update WebRTC verstion to r5583

Change-Id: I87e50aaa523011801b441ee635886f1d9d3a643f
Complete example with audio

Change-Id: Ic8210daeb1ae918deef64dd06140230752398732
FIXME: fails
Example with video only

Change-Id: If9a9e59e994dbc1a925b164c07137da6b0e8696b
Add video show support

Change-Id: I08ab42b754e894de66538ff4e1f6abde9cabe7ab
Show video of both WebRTC sessions

Change-Id: I79aa694fe24e9f7b51ed5483c706f81066a4e01d
Keep screen on

Change-Id: I351db03871c85cc2758b759c3348d23afaec4104
Add license headers

Change-Id: I9809b40b35c21fdf15452ae9608787555cadf7c0