OSMF SVN

Removing obsolete imports.

Updating metadata sample to the latest layout API changes.

Pre-PARB'ing the Layout API continued:

- Internalizing layout facet classes, and
- Adding a public LayoutProperties class,
- Removing LayoutUtils (for setting properties can now be done using LayoutProperties),
- Introducing IMetadataProvider, and marking classes that have a metadata getter to be implementing it,
- Remove LayoutRendererFacet (for it can be fetched/set directly from/to the metadata easily using ObjectFacet),
- Adding LayoutRendererMode, in preparation for horizontal and vertical boxing support on the default renderer,
- Updating client code and unit tests accordingly.

Updating OMSF player to:

- Use the framework layout system to position the control bar,
- as well as for positioning the right-click overlay.

Hide drm import in flash 10.0 builds.

Composite DRMTrait. MediaPlayer API additions.

Integrate httpstreaming + MBR + DRM related fixes from trunk.

Fix bug ZE-35

Fix bug ZE-34 and ZE-29. They are all about a 4-5 seconds delay of the audio when the content is DRM protected. It turns out to be a bug with HTTPNetStream, or more precisely a bug with the SVN creating patch feature.

PARB feedback: Rename wrappedElement to proxiedElement, make constructor param optional.

Remove obsolete import.