[PATCH] for DB_DataObject bug 14976

Hello, I cannot get the form on pear.php.net to accept this patch - says it must be a text file, but it is... Anyway, here is a patch to fix bug #14976. I also found a typo in the latest CVS and corrected that (was $dev, and should be $def). Finally, I added a check for the $t->len when generating files that used to result in a warning if the column doesn't have a length specified in the database. Thanks, Troy