[release] Prepare for next development iteration

Change-Id: If3844057f39deccef5c38869ee0f017dd94a82fc
Do not ignore Platedetector tests, they should be working

Change-Id: I7e1122fb141e6e35474f1536a2f15579d04d89b4
Assessed WindowInEvent in PointerDetector test instead of EndOfStreamEvent

Change-Id: Ia8d055f6e3a1a3e4b2b29771d2738bf63c07885e
ZBarTests: Enable codefound tests

Change-Id: I2be250ad5dbbd88e085bd382bd0de6255aaf232c
RecorderEndpoint: Reenable tests that failed while releasing

Change-Id: I409006902ed6454996ced274025a6150feaab7f4
Add asynchronous tests for WebRtcEndpoint

Change-Id: I4eab48b9ff4fd4f0d0b59eb6525f223d20648a5a
[release] Prepare release 4.2.0

Change-Id: Iba559ebd86028b11a561254a233f50d2fbe06ee6