OSMF SVN

Updating syndication library. Atom support is complete.

Modified AkamaiPluginSample player now includes a sample MRSS feed.

Pre-PARB metadata changes: Merge Facet and KeyValueFacet. Default facet uses a Dictionary, clients can extend if they want a different underlying structure. Update TemporalFacet accordingly. Disable some of the TemporalFacet API that's only used for test apps, we need to vet this a bit further. Update unit tests and samples.

Pre-PARB metadata changes: Merge IIdentifier and ObjectIdentifier, rename to FacetKey. Make similar adjustments to TemporalFacet class. Move TemporalFacetEvent to events folder. Update unit tests and samples.

PARB changes: Merge seekBegin and seekEnd event types into a single seekingChange event type. Add seeking as a getter to the SeekEvent class. Update test code and samples accordingly.

PARB changes: Hide URL/FMSURL, use strings instead. To support the FMS useInstance use case, modify StreamingURLResource to take a urlIncludesFMSApplicationInstance param, which NetConnectionFactory respects. Update unit tests and samples.

PARB changes: Remove references to URL within metadata APIs, where Strings would suffice.

PARB changes: Remove unload and query methods from PluginManager. We lack compelling use cases for those methods, but can easily re-add them later if we come across some.

PARB changes: Move all MediaElement subclasses into the "elements" package. Put internal classes into non-public subfolders (e.g. audioClasses). Update unit tests and sample apps. Remove VAST unit tests from OSMFTest, we should integrate VASTTest into the build system.

PARB changes: Rename PluginLoadEvent to PluginManagerEvent.