Run autopep8 on sources.

The exact command used was:
autopep8 -r weboot/ setup.py -i --max-line-length=100
Fix minor PEP8 warning

weboot/utils/thousands.py:13:10: E711 comparison to None should be 'if cond is None:'
Manually reformat lines > 100 characters
Run weboot/tests.py on travis.ci
Remove old code and comment in multitraverse.py
Add Makefile
Run PEP8 check on travis-ci
Merge pull request #113 from cdeil/cleanup

code formatting