Update readme
Grabber, query, and tests.
flake8 cleanup
Nice doc strings.
Sphinx docs
Make sure gagrab is importable from sphinx.
Better/correct autodocs
Setup.py description and install requirements.
python3 syntax compatability 01 -> 1
Python3 unicode compatability.
Grabber.query can take datetimes or strings for start_date and end_date
Merge pull request #1 from Wilduck/initial-code

Initial code