Merge branch 'hotfix/2.4.2'

* hotfix/2.4.2:
  * Updated gems * Fixed changelog
Merge branch 'release/3.0.0'

* release/3.0.0:
  * Ruby 2.1.0 * Using byebug instead of debugger * Enforced available locales to silence deprecation message * Updated gems
* Updated gems
Merge branch 'hotfix/3.0.1' into develop

* hotfix/3.0.1:
  * Updated gems