Merge branch 'conference'

sflphone-client-gnome/src/actions.c

sflphone-client-gnome/src/callable_obj.c

sflphone-client-gnome/src/codeclist.c

sflphone-client-gnome/src/codeclist.h

sflphone-client-gnome/src/config/accountlistconfigdialog.c

sflphone-common/libs/iax2/iax2-parser.c

sflphone-common/src/audio/audiortp/AudioRtpSession.h

sflphone-common/src/plug-in/librarymanager.cpp

sflphone-common/src/sip/sdp.cpp