Add XSERV_t, TRANS_SERVER, TRANS_REOPEN to quash warnings.
Add #include <dix-config.h> or <xorg-config.h>, as appropriate, to all
source files in the xserver/xorg tree, predicated on defines of
HAVE_{DIX,XORG}_CONFIG_H. Change all Xfont includes to
<X11/fonts/foo.h>.
- support for mouse-like devices that report absolute coordinates
- support for mouse-like devices that need to know screen size so they can
scale absolute coordinates to screen size
- fix 3-button emulation
