Improve ignores & setup.py

[T4rk1n]

Noticed a few improvements to be made while publishing 0.13.3/0.13.4

• Added .idea, tests, dist, .circleci to npmignore.
• Added repository url to setup.py

[rmarren1]

💃, could also consider adding

    long_description=io.open('README.md', encoding='utf-8').read(),
    long_description_content_type='text/markdown',

while you are updating setup.py, which will show the README properly on pypi. Right now it is empty.

I'll leave it up to you, we could just do another PR