introducing a new level of packaging break intermediate packages usage like 'from openquake.engine import utils' and than use 'utils.version.info(__version__)', fix it for the --version particular case
revert modification on bin/openquake because already added in a concurrent branch and removed unused argument in test_run_version method
Merge pull request #1052 from nastasi-oq/version-fix

Version fix (already present fix in master, add a test to verify it)