mod_console: Update for new server API, fixes traceback when closing console sessions

plugins/mod_console.lua

@@ -37,7 +37,7 @@ function console:new_session(conn)
 	local session = { conn = conn;
 			send = function (t) w(tostring(t)); end;
 			print = function (t) w("| "..tostring(t).."\n"); end;
-			disconnect = function () conn.close(); end;
+			disconnect = function () conn:close(); end;
 			};
 	session.env = setmetatable({}, default_env_mt);