Revert changes to mongo guest

There were some changes made to change the timing of startup
in the mongo guest:
https://github.com/Tesora/tesora-trove/commit/76655f714e536002b44e0ed387025d82ae754353

These changes then conflicted with the recent Clusters implementation
so we have decided to revert them.

I also fixed the version in setup.cfg to be 2014.02 to be consistent
with Juno