Fix syntax error in safaricom tx.
Some pep8 exclusions.
Non-transport pep8 fixes.
pep8 fixes for transports.
pyflakes fixes.
Fix Hangman demo string.
Merge branch 'feature/adhoc-assorted-pep8-fixery' into develop
Merge branch 'develop' into feature/issue-500-add-ownership-to-tagpool-manager