video recorder in place
Rename the MKV_WRITER filter into MKV_RECORDER
Merge remote-tracking branch 'origin/master' into dev_recorder

Conflicts:
	gtk/main.c
	mediastreamer2
fix build issue
make video recording working
Merge remote-tracking branch 'private/dev_recorder'

Conflicts:
	mediastreamer2
Small documentation fixes.
add setting to disable symmetric rtp
update submodules
add linphone core api and setting to allow forcing the video capture size, and take a snapshot of preview during calls.
update ms2 (oops)
update ms2
Updated ms2 and Android.mk for openh264 update
Updated ms2
Update ms2
Updated ms2 to fix Android compil
Check for CU_get_suite presence in the configure script and disable per-suite tester when not present.
allow setting output framerate, get actual sent and received framerate from call params
fix compilation problem on windows
Update oRTP and ms2 submodules.