TEIID-2537 fix for invokeHttp npe with old metadata
TEIID-2536 fixing issue with the correction of serialized enterprise
types
TEIID-2529: adding support for composite primary keys in the mongodb document using the _id field
Merge pull request #87 from rareddy/TEIID-2529

TEIID-2529: adding support for composite primary keys in the mongodb doc...
TEIID-2460 fixing log message
[maven-release-plugin] prepare release teiid-parent-8.4.0.Final
[maven-release-plugin] prepare for next development iteration
correcting the release notes and removing retoruntime from the javadocs
Merge branch '8.4.x' of https://github.com/teiid/teiid