Fix typo in config.rst, default exclude __pycache__

by default `__pycache__` is excluded.

See merge request !59

By default `__pycache__` is excluded.

Updating the configuration documentation

Updates the documentation to be clearer on how configuration settings should work.

Related to: !53

See merge request !58

Signed-off-by: Jason Myers <jason@jasonamyers.com>

Correct usage config_file StyleGuide parameter

Previously, we passed the location for our user config file to the
StyleGuide. This was intended to be a way to tell pep8's StyleGuide
to use that as a user config file, but instead that became the default
for the --config command-line option. This caused that to have higher
priority than the project configuration file.

Closes #122

See merge request !53

Remove special case for Python 2.6 mock test dependency

Previously, we passed the location for our user config file to the
StyleGuide. This was intended to be a way to tell pep8's StyleGuide
to use that as a user config file, but instead that became the default
for the --config command-line option. This caused that to have higher
priority than the project configuration file.

Closes #122

Update setuptools command option normalization

We were very naively "normalizing" options parsed and provided by
setuptools. This updates our handling to store the Option instance
from optparse so we can inspect the type, action, and option name for
more intelligent option normalization.

Closes #121

See merge request !52

We were very naively "normalizing" options parsed and provided by
setuptools. This updates our handling to store the Option instance
from optparse so we can inspect the type, action, and option name for
more intelligent option normalization.

Closes #121