[#33906] New Media Manager for Joomla! CMS

Hi All,
Let me introduce the new media manager for Joomla! along with this PR. With this project I have introduced 12 new things to Media Manager. I have constructed a document describing this project in detail.
The link for the document is : https://docs.google.com/document/d/1mZMwBU_hW7AshL5rkAdIyswQmzBmP1L8L1PdM093rB0/edit?usp=sharing
Feature Tracker Item: http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=33906&start=0
This new Media Manager add entries to your database. Therefore I kindly request you to go through "Testing Instructions" at document before testing this.


Thank You!

![pic1](https://cloud.githubusercontent.com/assets/1543384/3423841/afe25922-ffad-11e3-9a9b-334c77e841a8.JPG)

Same here as in the list model.

I don't think removing the whole class is going to work well. It will break any extension which uses this model.
 You should leave the class and methods in place and add the deprecate message in the method. If possible change the method so it calls the new replacement method. If they don't behave the same, leave the old one in place and make sure it still works.