allow the format of each window in the status line window list to be controlled
using similar # sequences as status-left/right.
This diff also moves part of the way towards UTF-8 support in window names but
it isn't quite there yet.
exists. A new message-limit session option sets the maximum number of entries
and a command, show-messages, shows the log (bound to ~ by default).
This (and prompt history) might be better as a single global log but until
there are global options it is easier for them to be per client.
already be set from the shell and are just passed through when printing (so
invisible characters or displaying on terminals with different character sets
may cause problems).
Note that entering UTF-8 may not work and in any case currently the status line
cannot display it correctly (outside of status-left/status-right).
on Sun consoles (TERM=sun or sun-color), even if there appear to still be
problems on some boxes (my Blade 100 is fine but edd's Blade 1000 shows odd
screen corruption).
them in as raw escape sequences rather than fiddling with the values from
terminfo, put them /after/ the terminfo values so the latter take precedence.
for argv being NULL, prompted by parfait via deraadt.
Also fix some definite brokenness when assigning multiple environment variables
in arguments (such as "X=1 Y=2").
from parfait via deraadt.
While here, add a statement to set the width when filling with _s if not enough
space (width should never be high enough at the moment anyway), and wrap some
long lines.
output some from rxvt but in other ways did the same as xterm or other
terminals, but this is a bit inconsistent.
xterm's method is fairly sensible and we already support it (xterm-keys), so
enable it by default instead.
partial matches to be done (they wait for further data or a timer to expire,
like a naked escape).
Mouse and xterm-style keys still expect to be atomic.
complicated because of escape input, but in that case instead of processing a
key immediately, schedule a timer and reprocess the bufer when it expires.
This currently assumes that keys will be atomic (ie that if eg F1 is pressed
the entire sequence is present in the buffer). This is usually but not always
true, a change in the tree format so it can differentiate potential (partial)
key sequences will happens soon and will allow this to be fixed.
