Removal of outdated char_file_u warnings.

Adding of the appropropriate structs to the plrtoascii utility.
Incoorporation of changes from old circlemud CVS snapshot
this also gives more info on SYSERRors.
cleanup of zmalloc language (shit->tmp)
PRF_ROOMFLAGS has been renamed to PRF_SHOWVNUMS for clarity.
"Deaf" has been changed to "No_shout" in preference_bits, for clarity.
Addition of hindex (help index) command.
who command added argument -g and -l to check who are grouped (and 
leaders)
toggle has been expanded, and the commands nohassle, holylight, 
color, buildwalk, syslog and roomflags were moved to toggles.
renaming of some vars in dg files (xxx -> dg_xxx) for clarity.


set <player> password can now be used by other people than the first
 implementor - id check removed.


fix of a couple of minor bugs:
- crash bug related to freeing a pointer twice - ascii pfiles bug.
- host was not updated correctly after switch to ascii pfiles.

Todo: 
make "who #-#", "who #-" and "who -#" all work as "who -l #-#" did before 
Remove redundant commands which are now toggles.
Make script variables save to pfile instead of its own file.

src/dg_scripts.h

@@ -310,7 +310,6 @@ void remove_from_lookup_table(long uid);
 /* from dg_db_scripts.c */
 void parse_trigger(FILE *trig_f, int nr);
 trig_data *read_trigger(int nr);
-void trig_data_init(trig_data *this_data);
 void trig_data_copy(trig_data *this_data, const trig_data *trg);
 void dg_read_trigger(FILE *fp, void *proto, int type);
 void dg_obj_trigger(char *line, struct obj_data *obj);
@@ -345,8 +344,6 @@ void update_wait_events(struct room_data *to, struct room_data *from);
 
 /* from dg_comm.c */
 char *any_one_name(char *argument, char *first_arg);
-void sub_write_to_char(char_data *ch, char *tokens[],
-		       void *otokens[], char type[]);
 void sub_write(char *arg, char_data *ch, byte find_invis, int targets);
 void send_to_zone(char *messg, zone_rnum zone);