Allow chat admin to delete channels (#69)

chatcommands.lua

@@ -93,7 +93,7 @@ local delete_channel = {
 			return false, "ERROR: Channel " .. param .. " does not exist"
 		end
 
-		if name ~= beerchat.channels[param].owner then
+		if name ~= beerchat.channels[param].owner and not minetest.check_player_privs(name, beerchat.admin_priv) then
 			return false, "ERROR: You are not the owner of channel " .. param
 		end
 

init.lua

@@ -9,6 +9,9 @@ beerchat = {
 	-- The main channel is the one you send messages to when no channel is specified
 	main_channel_name = minetest.settings:get("beerchat.main_channel_name") or "main",
 
+	-- Chat administrator privilege allows bypassing owner checks
+	admin_priv = minetest.settings:get("beerchat.admin_priv") or "server",
+
 	-- The default color of channels when no color is specified
 	default_channel_color = "#ffffff",