fix a compilation issue.. and use FS_MSN_SESSION_LOCK instead of GST_OBJECT_LOCK
fix a compilation issue.. and use FS_MSN_SESSION_LOCK instead of GST_OBJECT_LOCK

pexip/farstream,tieto/farstream,kakaroto/farstream,kakaroto/farstream,ahmedammar/skype_farsight2,ahmedammar/skype_farsight2,ahmedammar/skype_farsight2,tieto/farstream,shadeslayer/farstream,ahmedammar/skype_farsight2,tieto/farstream,shadeslayer/farstream,shadeslayer/farstream,pexip/farstream,tieto/farstream,kakaroto/farstream,pexip/farstream,shadeslayer/farstream,tieto/farstream,pexip/farstream,kakaroto/farstream