0.4.0

https://pypi.org/project/nodely/0.4.0

• Use zetup.toplevel wrapper for nodely package, and zetup.module wrapper for nodely.bin
• Use whichcraft to determine absolute path of real npm executable for nodely.install and nodely.uninstall functions
• Change path.py requirement from ~= 11.5 to >= 11.5 for Python 3
• Drop support for Python 3.4, and add support for 3.7