Build 2.9.0.68 of xlsgen fixes a number of problems related to worksheet duplication in XLSX files.

Among others,
- wrong "rId" in workbook part after deletion of worksheet
- improvement : actually delete the worksheet part relations in case of a worksheet deletion
- proper local sheet id reindexing
- default col width and row height in duplicated sheets
- outside col width
- copy row height from duplicated sheets
- missing pictures from duplicated sheets
- print paper size
- rich string with alternate formatting run
- distributed vertical alignment in cells
- better custom/autofit row height handling
- preservation of quarter-turn text
- duplication of local named ranges (applies to XLS files as well)


No source code change needed.