Merge pull request #21 from castaf/master

Allows local files upload below custom content types.
Use the new ``kotti_context_url`` JS global variable if it is available.
Bump version.
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 branch 'release/0.5a1'

* release/0.5a1:
  Bump version.
Add ko translations
Merge pull request #22 from mete0r/master

Add ko translations