Redmine

https://travis-ci.org/marutosi/redmine-bb/jobs/51242421#L416

DEPRECATION WARNING: You attempted to assign a value which is not explicitly `true` or `false` to a boolean column. Currently this value casts to `false`. This will change to match Ruby's semantics, and will cast to `true` in Rails 5. If you would like to maintain the current behavior, you should explicitly handle the values you would like cast to `false`. (called from up at /home/travis/build/marutosi/redmine-bb/db/migrate/001_setup.rb:291)