OSMF SVN

Created branch for DVR Rolling Window (From revision 2110)

Added Adobe Pass Plugin to trunk/plugins/samples/AdobePassPlugin

Removed Adobe Pass Plugin - will add it later in a different location

Added Adobe Pass Plugin to samples

Created branch for Rolling Window

Update for LBA
- fix seeking
- use the download information for main stream to calculate download ratio

Update for LBA
- after an index ready update, the HTTPNetStream will enter LOAD_SEEK state and not SEEK
- revert some changes in HttpStreamingF4FIndexHandler which affect the LBA mixing

Third phase HDS refactoring
- LBA reactivated (VOD and LIVE)
- HTTPStreamingF4FMixer updated to use FLV classes inside org.osmf.net.httpstreaming.flv packages
- minor modifications in order to minimize the updates of mixer internal buffers ( the internal buffers are reallocated only after we use at least half of their content)
- updated the mixing algorithm inside onMainTimer in HTTPNetStream
- mixer class is responsible to signal that is missing audio or video data
- update HTTPNetStream to wait for alternative audio initialization before it actually start playing data

IMPACT:
- no public API was affected

*NOTES*
- we still have unit tests and integration tests which fail

Modified the HSF4FIndexHandler - it now updates the bootstrap regularly (approx. each fragment) in both Play and Paused states.

Fix for FM-1295 (http://bugs.adobe.com/jira/browse/FM-1295)

NOTE
When dealing with protected content, the drm side car information was loaded only from drmContentData property of StreamingURLResource. This was particularly bad for MBR content, where the drm information was loaded to late and could put the MediaElement in an unloaded and back in a loaded state.

Now we are looking for drm information in the following order
- in drmContentData 
- in DRM namespace on the resource ( here we are trying to obtain the drm metadata for the stream indicated by initial index, and if we don't succeed then we are using an available information )