Bigquery-schema-generator

I forgot to tag this when I pushed it out to PyPI. Already on PyPI.

This should fix 2 problems:
* no longer complains about not finding README.md
* no longer requires pypandoc to run 'pip3 install'

My first attempt fix this exception during pip3 install:

Collecting bigquery-schema-generator
Downloading bigquery-schema-generator-0.1.2.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/private/tmp/pip-build-mr9vuupc/bigquery-schema-generator/setup.py", line 6, in <module>
long_description = pypandoc.convert('README.md', 'rst')
File "/usr/local/lib/python3.6/site-packages/pypandoc/__init__.py", line 66, in convert
raise RuntimeError("Format missing, but need one (identified source as text as no "
RuntimeError: Format missing, but need one (identified source as text as no file with that name was found).

Doesn't quite work because it then attempts to slurp in the raw README.md file, which it can't find yet again.