OSMF SVN

Fix for duplicate media size change events. The Reusable trait wasn't updating it's state when attached and detached from the composite element.

Fixed issue where the voucher was saved off before it was verified as good. Also loosened checks on the voucher to allow for 0 license length vouchers. FM-690

Fixing scrubber showing of the track when the element's duration is unknown.

Fixing FM-487.

Fixing FM-509

Final partial fix for FM-719. This fix modifies DurationElement to only expose the traits of the proxied element when the playhead is within the range of the DurationElement. When a DurationElement completes (or when the user seeks out of one), then it blocks access to all but the core (load/play/seek/time) traits. Added unit tests, and a "timed banner" example to ExamplePlayer.

Partial fix #2 for FM-719. This fix ensures that when seeking in and out of the child of a parallel element, that the play state is updated according to the play state of the composition. For example, if there are two parallel children of duration 10 and 20 seconds, and the parallel element is playing, and you seek from 15 to 5, then the shorter child should resume playback. (And similar for when paused.) Bug detected when verifying the (soon to be checked in) fix for FM-719, and seeking in and out of the section of video where the image should be displayed. Added unit tests for these cases as well.

Partial fix for FM-719. This commit fixes two specific issues:
1) Composite time trait children with NaN properties not propagating to the parent as NaN.
2) Serial seek trait's canSeekTo inappropriate returning false for canSeekTo(duration) and true when attempting to seek past an unseekable child.

Both issues discovered while testing the (soon to be checked in) fix for FM-719, based on the test case of a SerialElement with multiple DurationElements in parallel with a VideoElement (soon to be added to ExamplePlayer).

Fix typo in OSMFPlayer config file. Comment debug widgets out, they shouldn't show by default.

Add link to "see also" MediaPlayerState class