allow explicit pause/resume to "repair" a broken call

coreapi/linphonecall.c

@@ -4895,7 +4895,8 @@ void linphone_call_repair_if_broken(LinphoneCall *call){
 			linphone_call_params_unref(params);
 		break;
 		default:
-			ms_error("linphone_call_resume_if_broken(): don't know what to do in state [%s]", linphone_call_state_to_string(call->state));
+			ms_warning("linphone_call_resume_if_broken(): don't know what to do in state [%s]", linphone_call_state_to_string(call->state));
+			call->broken = FALSE;
 		break;
 	}
 }

coreapi/linphonecore.c

@@ -4022,6 +4022,7 @@ int _linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call){
 		ms_error("No reason to pause this call, it is already paused or inactive.");
 		return -1;
 	}
+	call->broken = FALSE;
 	linphone_call_set_state(call, LinphoneCallPausing, "Pausing call");
 	linphone_call_make_local_media_description(call);
 #ifdef BUILD_UPNP
@@ -4098,6 +4099,7 @@ int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *call){
 	}
 
 	call->was_automatically_paused=FALSE;
+	call->broken = FALSE;
 
 	/* Stop playing music immediately. If remote side is a conference it
 	 prevents the participants to hear it while the 200OK comes back.*/

oRTP @ 4214b357

-Subproject commit 45ae584ce2493860056a74ae0f31417a5194be8c
+Subproject commit 4214b357a598156bf750e045261a910f5185b46d