ERP-135 - changed error level for validation error on worker.
Merge pull request #13 from honest/ERP-135

ERP-135
ERP-131 fixed log
Merge pull request #17 from honest/ERP-131-fix_log

ERP-131 fixed log.  Travis borked while doing a pull only for 2.1 ruby so this should be fine.  -thl
Merge branch 'master' into ERP-116