added new TODO
added some new files for the initial rewrite of st from scratch
applied Matthias-Christians changes to std.c
slight changes
drop support for proprietary UNIX variants


Proprietary UNIX variants like AIX, HP-UX or SCO UNIX
are nowadays rarely used and maintaining compatibility to
non-standard operating systems interfaces is wasteful and
practically useless.

Projects like xterm suffer from backward compatibility to decades-old
UNIX variants and terminal standards. This does not conform to st's
design goals.
remove stdio slave pty opening
remove debug code
simplify control flow
correct LENGTH()
terminate error message with newline
replace state with separate variables
remove useless variable
add parser loop
add missing header file
remove xinerama flags


The xinerama related variables in config.mk are a relict of
dwm and therefore should be removed.
correct function name
update TODO
source getpty() out to pty.c
add copyright comment
source utility functions out to util.c