fix error handling for execute query [0.13.2]

Details of additions/deletions below:
--------------------------------------------------------------

Modified:   Lib/Core/Db/Model/Resource/ResourceAbstract.php
            -- Updated --
                _executeQuery, fixed error handling

Modified:   Lib/Core/Db/etc/config.ini
            -- Modified --
                changed version from 0.13.1 to 0.13.2