feature 1255: Move $conf['db_sqlite_default'] and $conf['dbengine_select_default'] in install.php (as constants).

PDO::SQLite is now displayed as SQLite in install page.
Always display unique SQLite engine.

git-svn-id: http://piwigo.org/svn/trunk@5239 68402e56-0260-453c-a942-63ccdbb3a9ee

include/config_default.inc.php

@@ -528,16 +528,6 @@ $conf['user_fields'] = array(
   'email' => 'mail_address'
   );
 
-// database engine default choice between sqlite (native or via pdo)
-// if the twice are available.
-// $conf['db_sqlite_default'] = 'pdo'; 
-$conf['db_sqlite_default'] = 'native'; 
-
-// default database engine proposed if severals are available
-// choices : sqlite, mysql, pgsql, pdo-sqlite
-// see include/dblayer/dblayers.inc.php
-$conf['dbengine_select_default'] = 'mysql'; 
-
 // pass_convert : function to crypt or hash the clear user password to store
 // it in the database
 $conf['pass_convert'] = create_function('$s', 'return md5($s);');

include/dblayer/dblayers.inc.php

@@ -34,7 +34,7 @@ $dblayers['sqlite'] = array('engine' => 'SQLite',
 			    'function_available' => 'sqlite_open'
 			    );
 
-$dblayers['pdo-sqlite'] = array('engine' => 'PDO::SQLite',
+$dblayers['pdo-sqlite'] = array('engine' => 'SQLite',
 				'class_available' => 'PDO'
 				);