Bump to v0.5.0.

Former-commit-id: f30f4b99104c94fb52df4c90dcda24b8ac51432c

lodash.js

@@ -1,5 +1,5 @@
 /*!
- * Lo-Dash v0.5.0-rc.1 <http://lodash.com>
+ * Lo-Dash v0.5.0 <http://lodash.com>
  * Copyright 2012 John-David Dalton <http://allyoucanleet.com/>
  * Based on Underscore.js 1.3.3, copyright 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
  * <http://documentcloud.github.com/underscore>
@@ -1542,6 +1542,8 @@
   function isObject(value) {
     // check if the value is the ECMAScript language type of Object
     // http://es5.github.com/#x8
+    // and avoid a V8 bug
+    // http://code.google.com/p/v8/issues/detail?id=2291
     return value && objectTypes[typeof value];
   }
 
@@ -4038,7 +4040,7 @@
    * @memberOf _
    * @type String
    */
-  lodash.VERSION = '0.5.0-rc.1';
+  lodash.VERSION = '0.5.0';
 
   // assign static methods
   lodash.after = after;