reentrant concerning errno. Revert unneeded FreeBSD hack to
loader/signal.c from last patch.

and DdeCreateStringHandleW and tidy up of RemoveHSZNodes, and
DdeCreateStringHandleA.

Notes.

Fix MapVirtualKey() (maptype=2) to return proper ascii code.
Reworked GetKeyNameText() again.

Cleaned up/fixed several things.

DEBUGGER_FREEZE_ALL/DEBUGGER_UNFREEZE_ALL requests.
Run wine server in the main wine process.
Bugfix: never free initial thread!

(but not processed yet) HAS already expired...

  applications now at least start up again).
- Use _thread_sys_sigaction/_thread_sys_sigaltstack.
- CR2 on pagefault gets passed in sc_err (some kind of kludge in
  FreeBSD owns fault handling we can use)

(problem reported by Andreas Mohr).

Wars) now works perfectly with Wine's crtdll. Wrote a test
implementation of _CIpow too, which those who do have Brood Wars can
report on, so it can be implemented correctly.

- Declare the WPRINTF_DATA union, and use it instead of LPCVOID and WORD.
  Avoid ugly type casting, and fix compilation warnings of wsprintf.c

Introduction of MCI yield procs.
Updated (prepare|unprepare)header functions (wave, midi) to allow
correct callback mechanisms.
Made midiStreamXXX functions working.
First try at mmThreadXXX functions.

mechanisms.