\$wgEnableUploads = false;
// Don't forget to "chown www-data $wdprefix/$project/images"
+// Edit permissions for group admins
+\$wgGroupPermissions['Administrators']['*'] = true;
+
// Edit permissions for group members
\$wgGroupPermissions['Members']['edit'] = true;
\$wgGroupPermissions['Members']['createpage'] = true;