- Generated Haskell code now uses qualified imports, so we have to do the
  same in conversions and addenda.

- Moves AModule stuff from Graphics.UI.Qtah.Generator.Types to .Module, and
  makes the modules that were generated via a separate code path from Main
  into regular Hoppy modules with Haskell addenda.

- Moves Callback and Listener modules to Graphics.UI.Qtah.Internal.

- Qtah now depends on Hoppy master (0.3.0).