Log message

- DibiTranslator: added brackets for %and %or (thanks to Jiri Sutera)
- DibiMySqlDriver: added common error constants

	Modify	/trunk/dibi/dibi.php	diff
	Modify	/trunk/dibi/drivers/mysql.php	diff
	Modify	/trunk/dibi/drivers/mysqli.php	diff
	Modify	/trunk/dibi/libs/DibiTranslator.php	diff