NickQiZhu/di.js — pull request #4 by Radio (2013-10-10 21:17:40+00:00)
Title: Fixed initialize() method for context map

If Object.prototype contains some additional properties, initialization fails.
Example:

```javascript
Object.prototype.foo = function() {}

function Bar() {
// bar constructor
}

var DiContainer = di.createContext();

DiContainer.register('bar', Bar);

DiContainer.initialize();

```