Fix#3055. Xls Reader can set vertical break specifying row 0, causing an exception. It is doubtful that Excel needs a row for a vertical break; code is changed to use row 1 if the input file specifies row 0 (or lower). Code in question has not been exercised in unit test suite. Similarly, code to set horizontal break (which probably does not have a bug) is not exercised in test suite. Finally, page order in Writer incorrectly uses value in opposite way that Reader does. A new sample is added to illustrate that these are all handled correctly; it is easier to verify this by visually comparing the source spreadsheet and the copy made from it. A unit test is also added for the same spreadsheet to formally assert that the 3 properties in question are both read and written correctly.
oleibman