Dukpy

* State compatibility with Python 3.7
* Provide wheels for Python 3.7
* Fix building wheel from source distribution

* Support for Windows
* Fixed issue with parsing of babeljs javascript code on non utf-8 systems.

ChangeLog
- Fixed `jscore` nodejs compatibility layer distribution in pypi package
- Added testing on Python 3.6

ChangeLog
- Support for `umd` in `BABEL_MODULES_LOADER` option
- filename is now provided to babel so that generated modules are not anonymous

ChangeLog
- Experimental Support for LESSC through `CompileLess` webassets filter
- Support for `console.warn`, `console.error` and `console.info`
- WebAssets filter for JSX
- Support for scoped packages installation in `dukpy-install`
- New `dukpy` command now provides a quick way to run scripts from command line
- Babel upgraded to 6.14
- `BabelJS` webassets filter now has support for `BABEL_MODULES_LOADER` option to point if CommonJS or SystemJS should be used for modules management in transpiled JS

ChangeLog
- Fix JavaScript files inclusion in distribution