Rewrote APC Implementation.

TODO: KiSwapApcEnvironment, Honour SpecialApcDisable.
Special thanks to Thomas and Filip.

Fixed I/O Manager Bugs. APCs were not created with the right parameters in the right places, or had useless parameters being sent.

Added mmdrv and midimap to bootcd.

Fixed KTHREAD defintion.

Fixed some thread alertability issue in thread creation.

svn path=/trunk/; revision=11610

reactos/bootdata/packages/reactos.dff

@@ -83,6 +83,8 @@ lib\kbduk\kbduk.dll                     1
 lib\kbdus\kbdus.dll                     1
 lib\kernel32\kernel32.dll               1
 lib\lzexpand\lz32.dll                   1
+lib\midimap\midimap.dll                 1
+lib\mmdrv\mmdrv.dll                     1
 lib\mpr\mpr.dll                         1
 lib\msafd\msafd.dll                     1
 lib\msgina\msgina.dll                   1