Ideas taken from patches submitted by ray007 and obscurity

#91581 - step 2, updating location.inc to reflect new country list, location.install to rename Swedish country code from sw to se in the database and also removing the contents of location.sw.inc

Also fixing _install() fn to reflect updated database schema for multiple locations.
(previously only support for updating).  Patch courtesy of drupal.org user
'sammys' (see http://drupal.org/node/107531 )

Twas only a 60 KB patch!

to 'eid' since 'oid' is a reserved word in pgsql.  Patch courtesy of drupal.org
user 'sammys' (see http://drupal.org/node/37006 ).

http://drupal.org/node/58809