The documentation incorrectly stated that these tools were

"automatically installed", as they were not dependencies in setup.py.

These dependencies were added to the optional 'all' target, and the

documentation updated accordingly.

Since this is just a change for Python dependencies I've done:

- pip install -e ./bot

- pip install -e ./bot[all]
To test if it installs and doesn't install pycodestyle and pyflakes 

under the default package and the all target, and according to the 

logs this is the case.