create quelpa-packages-dir when needed
Created by: steckerhalter
With Emacs master I did get some weird errors where it would error out because quelpa-packages-dir
had not been created. I couldn't figure out what caused this to break in master compared to older Emacs version.
Anyway, I tried to work around it by putting the dir code into the location where the dir is actually used. Could someone review this if possible?