Convert item attributes, refererences and collections to simple objects.

Signed-off-by: Richard Smith <rnsmith100@gmail.com>
Test fix.
raise batch size
Merge pull request #808 from rnsmith/simple-items

Item attributes, references and referencelists are simple objects
checktyle Refs #808
Merge branch 'beta' into i676
use same method as non-wildcard section