Replace "tokenauth" by "authtoken" in configuration files

This is the standard word used by all other projects.

Change-Id: Ibd52056bd1214f5fd7b2f2fd315086542d34fd0c
Closes-Bug: 1234314
Fixed PEP8/flake8 issues

We need to fix PEP8/flake8 issues corresponding to the new
hacking rules that got added before we can update to the
new global requirements.

Change-Id: Iff995139d258549ff9a8e3e5018e964efa2ab152
Merge "Replace "tokenauth" by "authtoken" in configuration files"