Fix KML writer crash bug

Fix KML writer crash bug
When Google Earth uses gpsbabel to import KML in "live" USB mode, kml_wr_position_init() is called before kml_wr_init() resulting in deferencing an uninitialized "writer" pointer. The solution is just to remove the setAutoFormatting(false) call; there's no real need for it as it doesn't measurably impact performance. Also remove other calls to remove nice formatting on timestamps (addressing a FIXME comment), and update the golden test data to match.