Specs and fixes

- Add specs and test tools, was 1% now 97% coverage.
- Fixed missing translations and translated mails.
- Add Swedish locale.
- Fixed assets paths and engine issues (mainly for tests to run).
- Updated README.
- Add Travis badge and config.

It was actually very broken, now only the Captcha integration need some
additional attention.
Merge pull request #47 from futhr/master-specs-n-fixes

Specs and fixes