TEIID-3040, TEIID-2958: remove the IDRef based values completely from persisted form of the data. Also TEIID-2958 removes the need to maintain the duplicate PK keys in the embedded document. When they are referenced they will be read from parent document
Merge pull request #283 from rareddy/TEIID-3040

TEIID-3040, TEIID-2958