Use ensure_ascii=False in json.load[s]

This makes it work with non-ascii characters, which appear in some git logs
(such as sympy's).

Fixes #3.
Merge pull request #3 from asmeurer/ascii

Use ensure_ascii=False in json.load[s] to handle unicode author names.
Merge pull request #1 from stonebig/master

Update __init__.py to use print function for python3 compatibility
Merge branch 'master' of https://github.com/stonebig/git2json into stonebig-pr-6
Flake8 fixes for pull request #6.
Start examples section in the README
Re-implement git2json with a regex-based parser
Refactor parsing code into parser.py
v0.2.1 package updates