* feature.c (scm_remove_hook_x): Bugfix: Changed reference to

* feature.c (scm_remove_hook_x): Bugfix: Changed reference to
s_add_hook_x --> s_remove_hook_x.
(scm_add_hook_x, scm_remove_hook_x): Hooks now takes arguments.
Added #include "procprop.h"
* feature.c, feature.h (scm_reset_hook_x): New procedure.
(scm_make_hook): Optional argument defines number of arguments to
the hook.
(scm_make_named_hook): Take number of args as second arg.
(scm_run_hook): Renamed from scm_run_hooks (old name kept for a
while); First arg is the hook.  The rest are arguments passed on
to the hook procedures.