Multimonitor support

[Fred Kiefer]

Dear GNUstepper,

Sergii has written a great patch that will tremendously improve support for 
multiple monitors in GNUstep by using the XRandR extension. There is a downside 
to it though, this patch will also remove any multi screen support that was 
there before without XRandR. So if you have a multi monitor setup and your 
system won’t support XRandR we would like to hear from you and try to find a 
solution that is acceptable for all sides. I hope that there is nobody in this 
specific situation but it seems easier to ask in advance than to fix it later.

Cheers
Fred