2008/04/19 23:01:02 kohei 1.1.2.8: removed unnecessary import statements.
2008/04/19 22:50:05 kohei 1.1.2.7: added sheet integrity check for drill-down sheets.
2008/04/19 19:36:54 kohei 1.1.2.6: test case for insertDrillDownSheet().
2008/04/19 15:59:21 kohei 1.1.2.5: added test case for getDrillDownData().
2008/04/18 21:04:28 kohei 1.1.2.4: added test case for getPositionData().
2008/04/18 15:02:51 kohei 1.1.2.3: complete testing of getOutputRangeByType().
2008/04/18 03:46:39 kohei 1.1.2.2: worked on testing getOutputRangeByType(). not finished yet.
2008/04/18 00:22:16 kohei 1.1.2.1: new test file for a new interface.