OSMF SVN

Parsing optimizations by removing DictionaryUtils method calls.

[Severity] normal
[Description] Fixed subclip issues: 1) Seeking in a subclip doesn't work (FM-1439) 2) Subclip playback doesn't stop at the end time (FM-1440)

- added unit tests for LayoutTargetSprite class

[ignore] - added missing leftparen.

- integrated review for r2416 - added a space after "if" and "for"

- fixed issue FM-1442. The stageVideo was not properly aligned when used in a serialElement or a parallelElement.

Improved CaptionElement creation performance by allowing captions to be attached to TimelineMetadata asynchronously. Media will pause, parse, resume, and then asynchronously create and add CaptionElements. Captions should display as soon as they are available in the TimelineMetadata at a given playhead time.

[Severity] ignore
[Description]Update OSMF .flexLibProperties to include the correct Base64Decoder class.

Added DEFAULT_TTML_NS and TTML_NS_REGEXP which should have been included as part of the fix in revision 2403

[build system changes] moved distribution targets to internal script, generate ProjectTemplate.mxml from template