- fix for playback after a sound has been recorded
- shall fix also opening the mci device without name
- bug reported (and fix tested) by Peter Astrand

TRACE cleanups.

Rename the dwFlags parameter of ITypeInfo_Invoke since it is not a
DWORD, but an unsigned short.

Change tests accordingly.
Add small test for WaitNamedPipe.

complaining about it.

Partially implement REExtendedRegisterClass() to register missing
window classes so that applications relying on them don't get
confused.

- make netconnection.c compile when HAVE_OPENSSL_SSL_H or 
HAVE_OPENSSL_ERR_H are not defined.

- properly handle drivers unloading when no session instance of the
  driver has been created

- native dbghelp returns in SYMBOL_INFO.TypeIndex the index of the
   type of the symbol (we were returning the symbol index instead)
- fixed winedbg accordingly