ref(JingleSession): rename 'responder' to 'responderJid'

modules/xmpp/JingleSession.js

@@ -50,7 +50,7 @@ export default class JingleSession {
 
         this.initiatorJid = this.isInitiator ? this.localJid : this.remoteJid;
 
-        this.responder = this.isInitiator ? this.remoteJid : this.localJid;
+        this.responderJid = this.isInitiator ? this.remoteJid : this.localJid;
 
         /**
          * Whether to use dripping or not. Dripping is sending trickle

modules/xmpp/JingleSessionPC.js

@@ -1033,7 +1033,7 @@ export default class JingleSessionPC extends JingleSession {
             .c('jingle', { xmlns: 'urn:xmpp:jingle:1',
                 action: 'session-accept',
                 initiator: this.initiatorJid,
-                responder: this.responder,
+                responder: this.responderJid,
                 sid: this.sid });
 
         if (this.webrtcIceTcpDisable) {