added support for modules argument for Babel

[jaheba]

Allows to pass a modules argument to babel.

See: https://babeljs.io/docs/usage/modules/

[andreyfedoseev]

@jaheba Thank you for the pull request. However, I can't accept it since it contains the unnecessary changes in setup.py. Also, please include this new paramter to the documentation for BabelCompiler in README.rst.

[jaheba]

Argh, this auto add new changes to pull request feature...

However I think it would be a good idea to at least add watchdog as an extra . One then can install django-static-precompiler with watchdog support as follows:

$ pip install django-static-precompiler[watch]

If you agree I would add this features and add them to this pull request together with some documentation.

[andreyfedoseev]

Argh, this auto add new changes to pull request feature...

You can create a new branch and cherry pick the selected changes there to isolate them, and then submit a pull request from this branch.

However I think it would be a good idea to at least add watchdog as an extra .

I like that! Would submit it as a separate pull request?

If you agree I would add this features and add them to this pull request together with some documentation.

I do agree, and feel free to add yourself to AUTHORS file.