Refactoring: merge two very similar functions + cleanup (OMS-349)
Improve error handling and argument serialization for Salt simple executor (OMS-349)
Fix a bug causing duplicate tpc_begin exceptions (OMS-349)
Merge pull request #70 from opennode/oms-349

Oms 349
Fix a bug preventing some sync actions from happening (OMS-392)
Not using json encoding for simple Salt arguments
Merge pull request #71 from opennode/oms-392

Fix a bug preventing some sync actions from happening (OMS-392)
Merge branch 'master' into oms-392
Fix another double tpc_begin call exception condition (OMS-392)
Merge branch 'oms-392'
Minor fixes