- Fix some bugs in Kernel Queue implementation:

- Fix some bugs in Kernel Queue implementation:
  * KeRemoveQueue did not set Thread->WaitNext = FALSE if it was called with WaitNext = TRUE.
  * KeRemoveQueue did not handle the case where a kernel-mode APC is pending and the previous IRQL was below APC_LEVEL.
  * KeRemoveQueue did not set the thread's wait status to 0.
  * KiInsertQueue did not set the Thread's wait status to the entry being inserted.
  * KiInsertQueue did not remove the thread from its wait list.
  * KeRemoveQueue did not properly link the wait blocks.

svn path=/trunk/; revision=20601