Adding in Sports vocabulary (v3.2 of SportsVocabulary doc).
This includes changes to startDate/endDate expected types to allow use on Statistic type.
First cut at schema for ItemList / ListItem, based on Martin Hepp's draft.
This branch is posted to sdo-sports.appspot.com
Adding numberOfElements property, as suggested by Alexander Shubin.
Adding example for ItemList from Alexander Shubin,
http://lists.w3.org/Archives/Public/public-vocabs/2014Jun/0122.html
Fixes to JSON-LD ItemList example.
Adding 3.2 examples set for Sports, via Jason Johnson.
An ItemList example was tagged to show in the ListItem page.
Merge branch 'master' into sdo-itemlist

Conflicts:
	app.yaml
Merge branch 'master' into sdo-sports

Conflicts:
	app.yaml
	data/examples.txt
Merge branch 'master' into sdo-sports
Merge branch 'master' into sdo-itemlist
Merge branch 'master' into sdo-itemlist
Merge branch 'master' into sdo-sports
Merge branch 'master' into sdo-itemlist
Merge branch 'master' into sdo-sports
sdo-itemlist.appspot.com
Merge branch 'master' into sdo-itemlist
Merge branch 'master' into sdo-sports
Merge branch 'master' into sdo-itemlist