fix run_tests.sh deprecated warnings and pep8 issues

- fixed BaseException.message deprecated warning
- added missing file qonos/openstack/common/processutils.py
to fix one of the pep8 import issues.
- fixed import error while running hacking.py and pep8
Merge pull request #307 from sandeep-bhardwaj/fix_run_tests_sh_warnings

fix run_tests.sh deprecated warnings and pep8 issues