Increase size of passed buffer to print into.

constant equivalents.  It's now obvious why these were chosen.  Should
be a NOP.

Don't list volume in capabilities when mixer is missing.

Add tests for CALLBACK_FUNCTION and CALLBACK_THREAD.  The only
callback type not tested now is CALLBACK_WINDOW.

- report the correct image base for a symbol which is
  seen as being in a builtin PE module, whilst its debug 
  information is gotten from an ELF module
- module_get_debug now returns a pair of modules
  (the requested that has to be presented back to the client
   and the effective one, which contains the debug info)
- reworked SymFromName in order to provide also the revelant
  module base address

some unneeded prototypes.

and PSP_HIDEHEADER in CreatePropertySheetPageA/W, handle resource ids.

proper value regardless of PSP_USETITLE, use it unconditionally.

Add some tests.