Fix incorrect description of capistrano thor task
Boyscout: add some extensions to provide data-openif and data-closeif functionality
Boyscout: prevent PATCH and PUT commands from the user form

Saving a record which is already persisted normally sends a PATCH or PUT
command to the back-end. This is not supported by the app (once
registered, no updates are allowed to a User), so it should be
prevented.
Add travis config
Some additional build steps for Travis
Increase Capybara Poltergeist driver timeout to prevent random failures
Fix Travis configuration which we broke by doing git push -f
Add db:test:prepare to .travis.yml
Merge branch 'master' into invite_collegues

Conflicts:
	app/assets/batman/controllers/users_controller.js.coffee