OSMF SVN

Removing lingering trace.

Removing lingering import.

Adding a control bar plug-in, and tester application.

re added unit tests.

Updated SMIL pluginintegration tests.

Updated example player to use new F4MElement.

PARB feedback LoadableProxyElement, MediaElementLoader, SMIL, F4M. Updated unit tests. Integration tests. SMIL tests.

Slight restructuring of the example.

Add HelloWorld example that uses MediaContainer.

1. Set the default value of _manualSwitchMode back to false
2. Remove the setter of client property and change relevant methods/properties.