Merge branch 'master' of https://github.com/Excel-DNA/XFunctions

Author: govert

README.md

@@ -37,7 +37,7 @@ TODO
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 * Understand compatibility for sheets between real functions and the XFunctions version - internally the workbook knows whether a function in a formula is a built-in function or an xll function . . . how does it behave when loaded backwards or forwards?
 * Clean up, add tests etc.
-* Fix up example books again, in a version where XLOOKPU is not yet supported.
+* Fix up example books again, in a version where XLOOKUP is not yet supported.
 
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