Bump version to 0.22

addons/attach/attach.js

@@ -47,7 +47,12 @@
       var term = this;
 
       term.off('data', term._sendData);
-      socket.removeEventListener('message', term._getMessage);
+
+      socket = (typeof socket == 'undefined') ? term.socket : socket;
+
+      if (socket) {
+        socket.removeEventListener('message', term._getMessage);
+      }
 
       delete term.socket;
     };

bower.json

@@ -1,5 +1,5 @@
 {
   "name": "xterm.js",
-  "version": "0.21",
+  "version": "0.22",
   "ignore": ["demo", "docs", "test", ".gitignore"]
 }

docs/conf.py

@@ -51,9 +51,9 @@ copyright = u'2014, SourceLair Limited'
 # built documents.
 #
 # The short X.Y version.
-version = '0.21'
+version = '0.22'
 # The full version, including alpha/beta/rc tags.
-release = '0.21 Alpha'
+release = '0.22 Alpha'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.