TMP: Set wait_timeout

[eddycek]

Set PDO options: 2,
Creating PDO connection to "mysql:host=martin-alternat-mysql-timeouts-st-514-mysql.ce0qbaqf0bka.us-east-1.rds.amazonaws.com;port=3306;charset=utf8;dbname=demo".
Current wait_timeout 28800
New wait_timeout 300
Exporting to "test".
Query: SELECT * FROM test
Query: SELECT 1
Query result set is empty. Exported "0" rows to "test".