Merge branch 'hotfix/v1.3.1'

* hotfix/v1.3.1:
  Bump version
  Removed twig/extensions. Fixes installation via composer
Automatically configure Twig to use the provided form theme
Merge branch 'master' of git://github.com/braincrafted/bootstrap-bundle into develop

* 'master' of git://github.com/braincrafted/bootstrap-bundle: