OSMF SVN

[prototype branch] Work in progress: Initial prototype of refactored MBR switching logic. Extracted logic out of DynamicNetStream into standalone NetStreamSwitchingManager, which works with a plain NetStream and handles switching logic based on NetStream events. Applied similar refactoring to NetMocker classes. Updated unit tests, with the exception of TestDynamicStream, which I'm keeping around to make sure similar tests are applied to NetStreamSwitchingManager. Everything's still in a very rough state (and auto-switching has bugs).

Removed format, README.txt, per Will's request

Removed locks, per Will's request

Removed hooks, per Will's request

Removed db, per Will's request

Removed conf

Asdocs comments updated:
1. Add HTML tags to DefaultMediaFactory description, to make intended bulleted list format work
2. Update comments that contained "IURLResource" to reflect change to "URLResource" class instead of the old interface.

Restore ability for HTTP streaming index handler to send/receive arbitrary context associated with an index, per Matthew's feedback.

Fix typo in comment.

Fixed a warning in the SMILPluginIntegrationTest Flex Builder project.