Update hacking package, fix I18n style issues

Hacking package updated from '>=0.8.0,<0.9' to '>=0.9.2,<0.10'.
Many new style rules have been added, some of which Designate violates.
Only the style rules that pertain to I18n have been addressed.
The rest have been added to the ignore list in tox.ini for further review.

Change-Id: I5c559c491ff9bee2346b1589e7bb7e117137609b
Implements: blueprint standardize-logging
Closes-Bug: bug #1330540
Merge "Update hacking package, fix I18n style issues"