Added '.dataChannel' to DataConnection - a reference to the RTCDataChannel object. Updated documentation to reflect changes.

docs/api.json

@@ -316,6 +316,11 @@
           }
         ]
       },
+      {
+        "name": ".dataChannel",
+        "type": "object",
+        "description": "A reference to the RTCDataChannel object associated with the connection."
+      },
       {
         "name": ".label",
         "type": "string",

lib/dataconnection.js

@@ -41,7 +41,7 @@ DataConnection._idPrefix = 'dc_';
 
 /** Called by the Negotiator when the DataChannel is ready. */
 DataConnection.prototype.initialize = function(dc) {
-  this._dc = dc;
+  this._dc = this.dataChannel = dc;
   this._configureDataChannel();
 }