Interactive efuns

<H3>These efuns are for dealing with interactive (user) objects:</H3>

actions and related efuns: (Not available with NO_ADD_ACTION)

<DL>
*  add_action
*  command
*  commands
*  disable_commands
*  enable_commands
*  find_player
*  notify_fail
</DL>

Archaic wizard functions: (Not available with NO_WIZARDS)
<DL>
*  disable_wizard
*  enable_wizard
*  wizardp
</DL>

The old ed interface: (#define OLD_ED)
<DL>
*  ed
*  in_edit
</DL>

The new one:
<DL>
*  ed_cmd
*  ed_start
*  in_edit
*  query_ed_mode
</DL>

Input handling:
<DL>
*  get_char
*  input_to
*  in_input
*  receive
</DL>

Output handling:
<DL>
*  printf
*  say
*  shout
*  snoop
*  write
</DL>

Information about user objects, and miscellaneous utility functions:
<DL>
*  exec
*  interactive
*  message
*  query_host_name
*  query_idle
*  query_ip_name
*  query_ip_number
*  query_snoop
*  query_snooping
*  resolve
*  this_interactive
*  this_player
*  userp
*  users

 Tim Hollebeek  Beek@ZorkMUD, Lima Bean, IdeaExchange, and elsewhere
