Adding in Sports vocabulary (v3.2 of SportsVocabulary doc).
This includes changes to startDate/endDate expected types to allow use on Statistic type.
This branch is posted to sdo-sports.appspot.com
Adding 3.2 examples set for Sports, via Jason Johnson.
Merge branch 'master' into sdo-sports

Conflicts:
	app.yaml
	data/examples.txt
Merge branch 'master' into sdo-sports
Merge branch 'master' into sdo-sports
Begun transcription of music proposal from Vicki.
adding more music.
First pass through music schema. Left lots of TODOs.
Using sdo-music appspot
Another pass through, getting close to done.
Fix to 'producer' annotation.
more bugfixes.
andstr wasn't defined globally, so didn't work on enum.
Merge branch 'master' into sdo-music
Merge branch 'master' into sdo-sports
Polish to music schema - copied in missing textual defs from doc,
added acks to mbz/mo, and a little more tidying.

Also attempting to use PublicationEvent instead of adding a custom type
for pair of place/time of a release.
Working on music examples.
Renamed my proposed property for hasReleaseRegion from "releasedAt"
to "releaseEvent" since we already have "releaseDate" in
http://schema.org/releaseDate (on Product, not CreativeWork, awkwardly).
Lots of music examples - thanks Vicki!

I've syntax checked and fixed this with jsonlint, but not
scrutinised the triples.

Tweaks: 'iswc' was renamed 'iswcCode'.

Also trying to avoid hasReleaseRegion + CreativeWorkReleaseRegion
being added, so for now example recycles PublicationEvent type via
a releaseEvent property.