First cut at schema for ItemList / ListItem, based on Martin Hepp's draft.
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.
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-itemlist
Merge branch 'master' into sdo-itemlist
Merge branch 'master' into sdo-itemlist
sdo-itemlist.appspot.com
Merge branch 'master' into sdo-itemlist
Merge branch 'master' into sdo-itemlist
Merge branch 'master' into sdo-itemlist
Moved sdo-itemlist examples to own file, conflict avoidance.
Moved ItemList proposal to separate file.
Moved itemListElement into separate file.
itemListElement extracted.
Update the 'image' property description

We now describe that the image property has a range of both URL and
ImageObject, allowing for more flexible usage of the property.

Fixes #99.

Signed-off-by: Dan Scott <dan@coffeecode.net>
Add examples for exampleOfWork / workExample

Use a Tolkien example for Book editions and Movie instances
that illustrate how one can link works of different types
through the exampleOfWork / workExample properties.

Signed-off-by: Dan Scott <dan@coffeecode.net>
Snapshot in RDFa