[STUMP] Problems (bug?) with bindings in top maps

[Alex Kost]

It looks like bindings in `*tile-group-top-map*' and
`*float-group-top-map*' don't work.

For example, i make this binding:
  (define-key *tile-group-top-map* (kbd "s-e") "time")

But when i press "s-e" (in a tiling group) this sequence is just passed
to the current window, though "describe-key" command tells that "s-e" is
bound to "time".

Is it a bug or do i miss something?