remove use_map for geoloc, use a setting instead (is that really useful ?

remove use_map for geoloc, use a setting instead (is that really useful ?
why so many complication !?)

remove the config hook for real, all is now set as default in platal.ini,
and platal.conf is used as an override.

yay, it's one step in the hooks disparition sense !

git-svn-id: svn+ssh://murphy/home/svn/platal/trunk@617 839d8a87-29fc-0310-9880-83ba4fa771e5