This also fixes some instances where adding a '%s' or similar was
forgotten

May have some runtime bugs still. Needs a little more testing

GH: closes #75

GH: closes #76

- Remove default value for --max-line-length
- Add pastlylogger.py as an excluded file. We won't use it soon, and it
started out external to sbws anyway

Modify pytest arguments

First draft of CONTRIBUTING.rst

Mass renaming

GH: ref #67

GH: ref #69

GH: ref #69