GitLab

- update oRTP and ms2

Added API to get the meta RTP transports + test to check we can append a RTP transport modifier on it

Conflicts:
	mediastreamer2
	oRTP

Made  echo calibration at start

Conflicts:
	coreapi/lpconfig.c

Fix an fopen(NULL) reported by valgrind.

setupwizard.c: fix previous commit (verify that settings window is opened first) and smooth regex concerning email/username on account creation/login

proxy.c: notify display status when registration is in progress so that when previous registration failed and user forces refreshing the proxy config, he gets notified of it

don't call prepare_sound with soundcards when the core is in use_files mode. It makes double instanciation of card readers causing crashes on iOS