Ability to reconnect after a connection failure

www/text/main.js

@@ -74,10 +74,19 @@ define([
     };
 
     var onAbort = config.onAbort = function (info) {
-        $textarea.attr('disabled', true);
+        setEditable(false);
         window.alert("Server Connection Lost");
     };
 
+    var onConnectionChange = config.onConnectionChange = function (info) {
+        if (info.state) {
+            initializing = true;
+        } else {
+            setEditable(false);
+            window.alert("Server Connection Lost. Trying to reconnect...");
+        }
+    };
+
     var rt = Realtime.start(config);
 
     ['cut', 'paste', 'change', 'keyup', 'keydown', 'select', 'textInput']