There are 2 new variables for the django settings.py file. If no one of the new variables is set, nothing changes.
The 2 variables are:

OPENID_LAUNCHPAD_TEAMS_MAPPING_AUTO = True
OPENID_LAUNCHPAD_TEAMS_MAPPING_AUTO_BLACKLIST = []

If OPENID_LAUNCHPAD_TEAMS_MAPPING_AUTO is True, the variable OPENID_LAUNCHPAD_TEAMS_MAPPING has no more function. all django groups will be automaticly mapped to launchpad teams. with the variable  OPENID_LAUNCHPAD_TEAMS_MAPPING_AUTO_BLACKLIST it possible to add a list with django groups which should not be mapped.