AIOI 2020-01 Release candidate ready for testing

[Chris Dee]

A bit of thread hijacking...
I have been reported something that looks like an issue with LDrawxxxx.exe updates.
AIOI defaults library installation to
C:\Users\Public\Documents\LDraw
which looks fine to me.

But library exe updates defaults to
(folder containing Ldrawxxx.exe)\%CommonDocumentsFolder%\LDraw
which doesn't seem very consistent (and I even doubt it works fine, not tried) and is anyway confusing for the user.
Comments?

Yes, I can confirm the the Windows installer for the complete library (built with InnoSetup) does use a defualt directory name of %CommonDocumentsFolder%\LDraw

I can change it for the next update if someone knows what it should be, that will work on Window 7 and Windows 10 as a minimum, and preferabvle for all users.

After the ldraw -> LDraw fiasco, the I'm a bit wary about changing well-established things in the parts updates.