pep8 formatting + coding: utf8
remove coding:utf-8 and add some style fixes
Merge pull request #63 from defuz/pep8

PEP8 formatting
Add SQLAlchemy to test app
Bump version for new release
Fix version number in docs
Fix Py3 support for bytes SQL queries

Fixes #64
`printable` filter should replace non-ascii bytes

In Python 2, when repr() returns bytes, replace any non-ascii bytes
with the unicode ? character to ensure that the result is printable.

Fixes #66
Merge pull request #1 from mgood/master

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