add name for vietnamese translator which was overlooked for the previous release.
Multiple column and row headers can be set on Excel sheets now. They sre stored perminantly on the sheet rather than being lost when closing Excel, and Jaws compatible defined name column and row headers are now supported by NVDA.

Specifically:
	* ExcelCell, ExcelMergedCell and ExcelSelection all now have rowSpan and colSpan properties, and all have rowNumber and columnNumber properties (ExcelSelection and ExcelMergedCell didn't have them previously).
	* SetColumnHeaderRow and setRowHeaderColumn scripts are now setColumnHeader and setRowHeader respectivly. They now must be executed on the first column header or the first row header, rather than anywhere along a line of column or row headers.
	* Tracking of row and column headers was completely rewritten to be a much more functional temporary cache, backed by defined names in the worksheet itself.
	* Although the setColumnHeader and setRowHeader scripts only cause basic defined names to be saved, NVDA can import the full functionality of Jaws compatible author defined names, specifically '^((?P<sheet>\w+)!)?(?P<name>\w+)(\.(?P<minAddress>[a-zA-Z]+[0-9]+)?(\.(?P<maxAddress>[a-zA-Z]+[0-9]+)?(\..*)*)?)?$'
Merge branch 't3568' into next. Incubates #3568
Outlook appModule:  ensure unicode is used for calendar queries so as to work in Japanese. Fixes #4179
Merge branch 't2943' into next. Incubates #2943
Move HeaderCellInfo and HeaderCellTracker out of the Excel module and into a new tableUtils module which allows these classes to be ossibly used by other code in the future, such as for MS Word auto header announcement.
Merge branch 't3568' into next. Incubates #3568
Provide speech and braille feedback for common Microsoft Word formatting shortcut keys including bold, italic, underline, superscript, subscript, left aligned, centered, right aligned, justified, outline level, and font size. Note that translators may need to provide locale-specific gesture bindings.
Merge branch 't1353' into next. Incubates #1353
Merge branch 't4140'. Fixes #4140
Merge branch 't4134'. Fixes #4134
Merge branch 't4090'. Fixes #4090
Merge branch 't4091'. Fixes #4091
Merge branch 't4095'. Fixes #4095
Update changes file.
Merge branch 't4096'. Fixes #4096
Merge branch 'master' into next
Add a new report paragraph indentation option to the Document formatting settings dialog, and have it affect reporting of hanging indent, first line indent, left indent, and right indent (such as in MS Word). This is rather than using report alignment.
Merge branch 't4165' into next. Incubates #4165
Revert "NVDAHelper winword support: no longer strip u+0007 (found at the end of a table cell) out of the text as users find the separator useful on braille displays. Probably should find a better character though. Re #3695" Re #3695