OSMF SVN

PARB changes: Modify MediaPlayer API based on PARB feedback. Change "durationReached" event to "complete". Update unit tests and sample apps.

Remove unnecessary imports.

Remove remaining references (mostly in comments) to IPluginInfo.

PARB changes: Change IPluginInfo to a class. Updated test code and sample apps and plugins accordingly.

PARB changes: renaming gateways to containers, renaming RegionGateway to MediaContainer, renaming HTMLGateway to HTMLMediaContainer. Renaming samples, and updating code and unit tests accordingly.

Additional updates for ViewTrait API changes.

Updating ChromeLibrary to the latest API changes.

Updating WebPlayer to the latest API changes.

PARB changes: merging IMediaGateway and IContainerGateway into IMediaContainer. Renaming addElement, removeElement and containsElement to addMediaElement, removeMediaElement and containsMediaElement.

Updating more samples to the latest API changes.