Link to LICENSE from README.
Merge pull request #850 from jroes/patch-1

Link to LICENSE from README.
Remove i18n, prefer simple solution.
Store all locales in memory to be mapped on the fly
Merge pull request #851 from mperham/i18n

Remove i18n, prefer simple solution
Refactor i18n removal, update changelog
Revert sinatra/slim as runtime dependencies

sidekiq/web is technically optional.  Since we've removed the need for
the i18n gem, we can go back to the previous dependency model.