Capture CallExceptions and rethrow them

Change-Id: Ie588a19984b4bcd1a8e5f09fb707bfa31243e00b
PointerDetectorAvd uses pointerdetector2

Change-Id: Idfef8f4496fc9352aa7a9282df24a7122eb3a4c9
Implement pointerdetector

Change-Id: I92e3ca91cf8f43131cde037b22030449020abe81
Implement werbrtcEndpoint

Change-Id: I40e9792d3bd7e6e82b69b18f000dfeb3b33f3fb4
Implement rtpendpoint

Change-Id: I4e74fb0b9225a31361ec3e56472c94903a78acdf
Implement zbar filter

Change-Id: Ifd509303ea7adce3d786ed6285a079bb500ac577