Invoke can now only invoke method in class 'invoke', likewise for 'probe'

luprex/lua/menu.lua

@@ -29,9 +29,10 @@
 --
 ----------------------------------------------------------------
 
-makeclass('engio')
+makeclass('probe')
+makeclass('invoke')
 
-function engio.getmenu()
+function probe.getmenu()
     local class = tangible.getclass(place)
 
     -- if the tangible doesn't have a 'lookmenu' function, do nothing
@@ -47,7 +48,7 @@ function engio.getmenu()
     return items
 end
 
-function engio.pressmenu(label)
+function invoke.pressmenu(label)
     local class = tangible.getclass(place)
 
     -- if the tangible doesn't have a 'lookmenu' function, do nothing