changed minetest chat function regchat to create command_list table

modpol_minetest/chatcommands/chatcommands.lua

@@ -4,13 +4,19 @@
 
 local chat_table                -- MT chat command definitions table
 local regchat                   -- Chat-command registration function
+local command_list              -- user-facing list of commands
 
 regchat = minetest.register_chatcommand
 
+regchat = function(name, command_table)
+   minetest.register_chatcommand(name, command_table)
+   table.insert(command_list, name)
+end
+
 -- ===================================================================
 -- /menu
 -- Presents a menu of options to users
-minetest.register_chatcommand(
+regchat(
    "menu", {
       privs = {},
       func = function(user)
@@ -56,7 +62,7 @@ regchat ("list_orgs" , chat_table)
 
 -- ===================================================================
 -- /listplayers
-minetest.register_chatcommand(
+regchat(
    "listplayers", {
       privs = {},
       func = function(user)
@@ -67,7 +73,7 @@ minetest.register_chatcommand(
 
 -- ===================================================================
 -- /joinorg
-minetest.register_chatcommand(
+regchat(
    "joinorg", {
       privs = {},
       func = function(user, param)
@@ -81,7 +87,7 @@ minetest.register_chatcommand(
 -- ===================================================================
 -- /pollself [question]
 -- asks the user a question specified in param
-minetest.register_chatcommand(
+regchat(
    "pollself", {
       privs = {},
       func = function(user, param)