This is a major change that I have been testing and writing locally. I just tagged UNSTABLE4 before this commit so there's a point to go back to if I end up having to roll back.

* Add per-location-field weights and defaults.
* Add location_api_variant() that I will increment when breaking something in the future that might be used from another module. It is now 1.
* Make settings on location_cck work nicely.
* Field settings are now in a table.
* Field settings defaults can now be overridden in the UI.
* Field settings are now weighted. (Draggable in D6!)
* "Force Default" may now be used for all fields.
* Content type settings validation is repaired again.
* Major COW changes (again) -- Should not have any impact on sites, but be careful until the new code is proven.
* Tests were added to ensure COW functionality doesn't break. (Tests were committed earlier)

API Changes:

* If you were using a location_element, the #location_settings is now the *entire* settings array, not $settings['form']['fields']!
* hook_locationapi() 'collection default' and 'default values' ops  have been merged into a single 'defaults' op, which now allows specifying default weight.
* Collection status 3 is now 4. (Relevant for the 'country' field.)

This allows us to have multiple user locations, and simplifies the API for associating locations with other things.

The variables used by location got all shuffled around because of this, but I put in compatibility code to keep setting location_maxnum_{nodetype} and location_defaultnum_{nodetype}, because there is a lot of contrib modules checking for them.

B) Made user locations work more like node locations.

C) Allow more than one location to be "required".

D) Reorganize the variables. Now there is a single variable per content type. (location_settings_{nodetype})

E) Make virtual fields hideable, and add the map link as a virtual field.

F) API change: The return value of 'virtual fields' op is now an array of keys and values, where the values are the labels for the hide checkboxes.

* Fix $op 'delete' on hook_locationapi().
* API CHANGE: Use location_save_locations() with an empty array instead of deleting rows from {location_instance}. This lets us have "real" deletion instead of relying on garbage collection.

Before:
<code>
db_query("DELETE FROM {location_instance} WHERE genid = '%s'", 'mykey:'. $obj->id);
</code>

After:
<code>
$locations = array();
location_save_locations($locations, array('genid' => 'mykey:'. $obj->id));
</code>

* Remove garbage collection routine and UI from settings page. References are checked automatically now.

Although I can't fix the update warnings proper, I can inform the user why they happen, reduce them, and repair the stuff reported in #317823.

Tested on MySQL and PostgreSQL.
Please be careful until this code is fully proven!

Allow hiding arbitrary fields on display. (Forward port of commit 138847)

Convert any non node/user locations into genids during update.
This fixes a 3.0 release blocking todo in the installer.

Rip out the notion of "supported countries." With the dynamic country loading, this isn't really needed.
This breaks some of the "province listing" stuff, but it needed work anyway.

Split out a seperate cache table for the location search cache.

Comment out the "new" update until I can verify that it was actually TESTED IN POSTGRESQL :-/

It is going to be faster to merge in the last 6 pages of changes by hand.

Revert (sans a few files) to DRUPAL-5 again and start over.

Normalizing file headers, ensuring all the $Id$ tags work (Somehow a bunch of files got -kk'd in CVS so the tag expansion wasn't working), changing documentation around.

* #116599 by dww: need to check that views module is present during install

* #213248 by dww: location_update_2() doesn't return an array

* rename $ret to $update on .install

* #213029 by lodewijk.loos: database index field

* Drupal code standards compliance
* PHP_E code compliance
* Proper SQL instaler for PostgreSQL
* Save installer for MySQL and PostgreSQL (easier to exchange them)
* #197107 "Typo in location.module renders location distance search unit settings ineffective"
* #199289 "Close tags in location.theme"
* #87292 "US/CA location reference non-existent 'state' location attribute"

New Features:
* Location Fax uninstaller
* Location Phone uninstaller
* Countries list is now sorted alphabetically and translated
* State list is now a autocomplete
* Users can have more that one address on the new address book

Misc:
* Several new Doxygen documentation
* 80-character per line policy
* Code organization
* Functions listed in alphabetic order
* Several functions renamed for consistency
* All non-hook functions have a _ at the beggining, to avoid to executed as a hook

* Brand new installer

Misc:
* Better doxygen documentation

Pull DRUPAL-5 up to HEAD.

HEAD is now the development branch up to 3.0.

#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