patch applied (ghc-6.6/ghc): Don' t free sched_mutex until freeTaskManager has finished with it

[Simon Marlow]

Tue Dec 12 07:33:53 PST 2006  Simon Marlow <simonmar at microsoft.com>
  * Don't free sched_mutex until freeTaskManager has finished with it
  Also move closeMutex() etc. into freeTaskManager, this is a free-ish thing

    M ./rts/Schedule.c -1 +3
    M ./rts/Task.c -11 +5