Usergrid 1715

The problem is that queries that specify select and a list of property names are returning not just those selected properties but the entire entities that match the query.

The fix ensures that select property queries return a response with a "list" property that is an array of properties selected by the query and that select * queries return a response with an "entities" property that is an array of entity objects. There is also a new test that verifies this behavior via REST API calls on the users resource.

Also, this change re-enables the UserResourceIT test (removes the Ignore annotation).