message: Fix exception on OutgoingStreamTrack detach
diff: @@ -55,10 +55,11 @@ class OutgoingStreamTrack
  /**
  * OutgoingStreamTrack remb event
  *
  - * @event OutgoingStreamTrack#stopped
  - * @type {Number} bitrate
  + * @event OutgoingStreamTrack#remb
  + * @type {OutgoingStreamTrack} Track
  + * @type {Number} bitrate estimation
  */
  - this.emmitter.emit("remb",bitrate);
  + this.emmitter.emit("remb",this,bitrate);
  };
  }
  @@ -200,7 +201,7 @@ class OutgoingStreamTrack
  return;
  //Remove listener
  - this.transponder.off("stopped",this.onTransponderStopped());
  + this.transponder.off("stopped",this.onTransponderStopped);
  //Stop transponder
  this.transponder.stop();
  @@ -209,6 +210,15 @@ class OutgoingStreamTrack
  this.transport = null;
  }
  + /**
  + * Get attached transpoder for this track
  + * @returns {Transponder} Attached transpoder or null if not attached
  + */
  + getTranspoder()
  + {
  + return this.transponder;
  + }
  +
  /**
  * Add event listener
  * @param {String} event - Event name
  