Fix warnings

This is from Debian and makes koules compile a bit more cleanly.
Remove relics
Fix a buffer overflow

This fixes some buffer overflow, that are not severe, unless koules.svga
is installed setuid root. Not by default. The first hunk is from Debian.
Spelling fixes from Debian.
From Debian: 050_defines.diff
We do not install manual pages

Make imake not complain about knowing about manual pages.
This one comes from PLD Linux's koules-noman.patch
Fix build

This fixes compilation issues with newer GCC. Taken from PLD.
Install to relative location and look for the sound server in the right place
From Debian: 106_shm_check.diff
From Debian: 107_fix_xsynchronize.diff
From Debian: 108_use_right_visual.diff
From Debian: 109_fpe_fix.diff
Set TABSIZE globally

It's used outside ifdef'd parts and defined in ifdef'd parts redundantly.
io.h no longer needed
DEFAULTINITPORT is not defined if building without NETSUPPORT
Fix undefined reference if building with net and without mouse
Fix pointer target signedness
Fix banner placement with OS/2

It would overlay otherwise.
Fix rocketcolor signedness
Fix background color calculation