Pass complex data as keyword argumentsto Salt (OMS-395)

Add logging for actual command line args passed to call Salt
Refactor sync VirtualizationContainer creation slightly
Merge pull request #75 from opennode/oms-395

Pass complex data as keyword argumentsto Salt (OMS-395)
Merge pull request #76 from opennode/oms-385

Experimental: Add missing memory parameter to deployment params (OMS-385)
Implement extended action locking (OMS-401)
Additional implementation and fixes for the locking feature (OMS-401)
Hack for the post-move inconsistent state bug (OMS-401)
Fix the hack: we are in the transaction already! (OMS-401)
Merge pull request #77 from opennode/oms-401

Revamp locking for actions with additional locking
Refactoring of compute actions + adjusting model memory size units from GB to MB (OMS-385)