Release notes:
http://git.openstack.org/cgit/openstack-dev/hacking/tag/?id=0.10.0
* Fix W292 (no newline at end of file)
* Fix H238 (old style class declaration, use new style)
* Skip H105 (Don't use author tags) temporarily.
* Remove H307 from ignore list since it is removed from Hacking rule.
* Remove H302 (import only modules) since there is no violation now.
Change-Id: Ic5967652819c9c322de327d504882a0e3029d462