URL rewrite: 3 options in the config file define behaviour (question mark

removal, file name for picture and .php extension removal)

fix: added unsigned for column in install sql - for the sake of uniformization

change: add_url_param is now add_url_params and takes an array as parameter 
instead of a string

git-svn-id: http://piwigo.org/svn/trunk@1094 68402e56-0260-453c-a942-63ccdbb3a9ee

install/phpwebgallery_structure.sql

@@ -260,7 +260,7 @@ CREATE TABLE `phpwebgallery_user_cache` (
   `user_id` smallint(5) NOT NULL default '0',
   `need_update` enum('true','false') NOT NULL default 'true',
   `forbidden_categories` text,
-  `nb_total_images` mediumint(8),
+  `nb_total_images` mediumint(8) unsigned,
   PRIMARY KEY  (`user_id`)
 ) TYPE=MyISAM;