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

luprex/lua/hotkeys.lua

@@ -29,9 +29,10 @@
 --
 ----------------------------------------------------------------
 
-makeclass('engio')
+makeclass('probe')
+makeclass('invoke')
 
-function engio.gethotkeys()
+function probe.gethotkeys()
     local class = tangible.getclass(place)
 
     -- if the tangible doesn't have a 'lookhotkeys' function, do nothing
@@ -48,7 +49,7 @@ function engio.gethotkeys()
     return keys
 end
 
-function engio.presshotkey(pressed)
+function invoke.presshotkey(pressed)
     local class = tangible.getclass(place)
 
     -- if the tangible doesn't have a 'lookhotkeys' function, do nothing