[ 1474309 ] Bind <space> to builtin_raise in mouse.c

[Bastian M. <bma...@we...>]

Here's a modified version of Timoth=E9e latest patch
which fixes the OS/2 part.
Moreover it introduces a new define
WANT_X11_RAISE to be able to deactivate
the X11 dependant stuff. This will be defined
when X11 is defined, but is normally undefined
on OS/2 to avoid the linkage requirement againt
libX11.
I also removed some "%lu" formats left in a
printf statement when removin gnuplotXID.

I'll post it on the list since I cannot
attach files on sourceforge.

Bastian