ready for 0.4.0 release

Author: dmonad

README.md

@@ -63,5 +63,8 @@ If you do not want to connect to the default room component (see options.default
 var connector = conn.join("[email protected]")
 ```
 
+## License
+Yjs is licensed under the [MIT License](./LICENSE.txt).
 
+<[email protected]>
 

build/browser/y-xmpp-polymer.js

@@ -166,7 +166,7 @@ XMPPConnector = (function() {
       if (sender === this.user_id) {
 
       } else if (stanza.getAttribute("type") === "unavailable") {
-        return this.userLeft(sender, sender_role);
+        return this.userLeft(sender);
       } else {
         sender_role = stanza.getChild("role", "http://y.ninja/role").getText();
         return this.userJoined(sender, sender_role);

build/browser/y-xmpp.js

@@ -140,7 +140,7 @@ class XMPPConnector
         # nop
       else if stanza.getAttribute("type") is "unavailable"
         # a user left the room
-        @userLeft sender, sender_role
+        @userLeft sender
       else
         sender_role = stanza
           .getChild("role","http://y.ninja/role")