Remove redundant job ccdb_postgres

Bosh allows a single job in this release (such as postgres) to be
run on multiple instances using different configuration properties.
There is no need for a ccdb (& a uaa, for example) postgres job in
the release.
extra double escape the NATS message so it doesn't parse out into the JSON
Merge pull request #139 from drnic/remove_ccdb_pg

Remove redundant job ccdb_postgres

@aramprice / @jfoley
Reactivate loggregator

Signed-off-by: Glenn Oppegard <goppegard@pivotallabs.com>
Added version 171 of loggregator and deaagent blobs