Remove all old $Id:$ and similar constructs, they don't provide any
additional benefit anymore.
Add configure options for toggling terminal bell and toying with
SIGSTOP using Ctrl-Z. Rename config option for ANSI keys to get
a consistent namespace.
Also did some work on ANSI-fication of function definitions, lot's
of that was still lingering around.
rl_complete() and rl_list_possib(). Simply leave out complete.o from
the default build and in all programs require these two functions to
be supplied.
A better alternative would be to use function pointers and check those
for NULL in the running code. With this code, and no completion handler
the editline code will die.
