atk4/atk4 — pull request #133 by DarkSide666 (2012-10-22 11:18:31+00:00)
Title: Exception if PDO is enabled, but PDO_MySQL is not

If PDO is enabled, but PDO_MySQL is not enabled in your server, then we simply get HTTP 500 error response on line with PDO::MYSQL_ATTR_INIT_COMMAND without any explanation why it's so.
Better throw exception and explain what's happening.