The VerifiedSecondFactorSearchQuery now takes the institution as
one of its arguments. This argument is mandatory and is now added
to all the calls of the VerifiedSecondFactorSearch service call.

See https://www.pivotaltracker.com/story/show/160283514

- We need a custom composer.json and lock file in order to
  not be dependend on the file/symlink installation of the mw
  client bundle
- Enable travis builds on the fga feature branches

The getRegistrationCode method was not used.

For the VerifiedSecondFactorSearchQuery, fixing a typo in the process.