Bye bye hash rockets.
Add config support for Hound CI.

Current state say: 359 offenses detected.
Build version with Gem::Version.new
Update frontend language select layout.
Inject backend CSS reference on install.

CSS for backend existed but was never applied on installed.
Update all views and hooks for master branch.
Remove locales with 0-5% translations.

These are not proper and just acts as clutter.
Cleanup locales for Spree 3.0.0.beta

- Remove unused keys.
- Add missing keys.
- Sort and parse syntax with Psych.
- Remove english translations in none english locales to prevent
fallback blocking.
Update translations for :sv locale now 96%
Update new :nb locale for master branch.
Merge pull request #494 from futhr/clean-locales

Clean locales for master branch.
Merge pull request #496 from futhr/fixup-bootstrap-master

Update master branch layout.
Add mysql2 and cleanup order.