Changed Plugins to build against new Screen Directory Hierarchy#9

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johnmangan wants to merge 2 commits intoIVCenter:masterfrom

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Commits on Jul 15, 2013

* Changed include references to hit new Screen locations.
johnmangan
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Commits on Aug 26, 2013

* Updated ModelLoader so that the loadFile callback will simply load the file and attach it to a scene object, without registering it or attaching it to the scene.
johnmangan
committed