Please give branch "tuneKoUnitAPI" a quick test with your fav. program

[Friedrich W. H. Kossebau]

Hi,

my patch to improve the KoUnit API a little and ensure consistent display of 
th unit types all over Calligra (see http://git.reviewboard.kde.org/r/104626/) 
is a little bit larger and touches a lot of files all over the codebase.

So please help boemann with the review and check-out that branch now and test 
all unit type related parts of your favourite programs, to see that everything 
really still works.

Please, be a good guy and do your bits to prevent bit-rotting :)

And one question during that work arose:
should Pixel as unit type be really listed also for Sheets?

Cheers
Friedrich