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.
Merge pull request #496 from futhr/fixup-bootstrap-master

Update master branch layout.