Added new hacking version to requirements

* Added hacking>=0.9.1,<0.10 according to change
  I160ee86ea8102e6ce82a9e34e2056a0f1f965d7b
* Ignored all pep8 errors to work with new version

Change-Id: I2832d60350babc8f37a2b4aeae1ad4ad8095fada