* Highlight VLOOKUP bug with a new test * Remove useless statements + fix VLOOKUP bug Please not that we have still inconsistencies in Excel (See LOOKUP and VLOOKUP.php test files) * Base strtolower on our StringHelper in LookupRef
It was inconsistent with spreadsheet software before. Closes #809
This simplify code, increase readability and improve the function signature for API users.
FIX #14