* Merge bugfix #2546 from poco-1.9.1
* Fixed ODBC SessionImpl
* Fixed missing methods in PostresSQL and testsuit
* Fixed missing method in SQLite SessionImpl
* Use mysql_refresh() instead of mysql_reset_connection()
* Use mysql_reset_connection() if it is available
Use mysql_reset_connection() only if MySQL version is >= 5.7 or MariaDB
version is >= 3.0.0 otherwise fall back to myslq_refresh()