Update to core login: password set/lock, start add PDO::Pgsql

The login class and edit interface has added lock/strict login and a
basic layout add for forced change password in X days (not yet
implemented)

Also start adding pdo interface wrapper class for pgsql

www/libs/db_pgsql.inc

@@ -3,7 +3,7 @@
 	* AUTHOR: Clemens "Gullevek" Schwaighofer (www.gullevek.org)
 	* CREATED: 2003/04/09 
 	* SHORT DESCRIPTION:
-	* pgsq; wrapper calls
+	* pgsql wrapper calls
 	* HISTORY:
 	* 2008/04/16 (cs) wrapper for pg escape string
 	* 2007/01/11 (cs) add prepare/execute for postgres
@@ -96,16 +96,14 @@
 		}
 
 		// METHOD: _db_close
-		// PARAMS: optional database handler
+		// PARAMS: none
 		// RETURN: none
 		// DESC  : wrapper for pg_close
-		public function _db_close($dbh = '')
+		public function _db_close()
 		{
-			if (!$dbh)
-				$dbh = $this->dbh;
-			if (is_resource($dbh))
-				if (@pg_connection_status($dbh) === PGSQL_CONNECTION_OK)
-					@pg_close($dbh);
+			if (is_resource($this->dbh))
+				if (@pg_connection_status($this->dbh) === PGSQL_CONNECTION_OK)
+					@pg_close($this->dbh);
 		}
 
 		// METHOD: _db_prepare