Merge branch 'release/0.4.2'

* release/0.4.2:
  Bump version.
Bump version.
Require js.tinymce 4.0.12
Use Bootstrap 3.
Merge branch 'feature/bootstrap3'

* feature/bootstrap3:
  Use Bootstrap 3.
  Require js.tinymce 4.0.12
Bump version.
Merge remote-tracking branch 'origin/production' into production

* origin/production:
Merge branch 'release/0.5a1' into production

* release/0.5a1:
  Bump version.
  Use Bootstrap 3.
  Require js.tinymce 4.0.12