revert to reading config for superuser token_auth

import_logs.py --help ... --config ... Piwik will read the configuration file...to fetch the Super User token_auth

A prior change had import_logs.py launching a php command on local file system to query piwik database, however piwik may not be installed on local system. And for me it didn't work. And why run a python script, to launch a php script, to query a database, to then run the http post to the (possibly remove) piwik http server.