First part of Calc core refactoring is in

[Kohei Yoshida]

The first part of my Calc core refactoring change is now on master.  You 
guys can now push to sc freely.  Thanks a lot for your help.

I will continue to make changes to the core even after this merge, but I 
think the rate of change will be smaller and more focused that I can 
handle it in parallel with other changes.

Kohei

-- 
Kohei Yoshida, LibreOffice Calc hacker, SUSE.