Add 'verbosity' config option and default

This adds the the 'verbosity' argument to all of the functions.
which allows setting the verbosity level for everything individually.
Add message for a configuration file error
Fix comparison to True/False syntax
Fix setup.py, use 'py_modules' and remove a dep

'archmap.py' is still a single file, so use 'py_modules' over 'packages'.

Remove 'github3.py' dependency, it is an optional extra that isn't used
without 'geojsonio' (which is not packaged yet).