OSMF SVN

Updated sample apps to match new IPluginInfo signature.

Refactor MediaInfo/MediaFactory relationship to make factory aspects distinct from media definitions. Remove MediaElement.initialize and all of its implementations, dynamic instantiation is now handled by a client creation function. Update all dependent code (sample apps, plugins, unit tests, etc.).

Package renaming to org.osmf: plug-ins.

Updating the MAST plugin integration test.

Code changes from MAST code review.

Adding the MAST plugin and a MAST sample app.