MySQL fixes/additions/improvements

- fixed GH #187: MySQL: allow access to the underlying connection handle
- added GH #186: MySQL: support for MYSQL_SECURE_AUTH
- fixed GH #174: MySQL: 4GB allocated when reading any largetext or
largeblob field

Data/MySQL/testsuite/src/MySQLTest.h

@@ -142,6 +142,8 @@ private:
 	void recreateNullableIntTable();
 	void recreateNullableStringTable();
 
+	static void dbInfo(Poco::Data::Session& session);
+
 	static std::string _dbConnString;
 	static Poco::SharedPtr<Poco::Data::Session> _pSession;
 	static Poco::SharedPtr<SQLExecutor> _pExecutor;