[RTL]: Correctly read PEB or Kernel Variables for Heap Tuning.

[RTL]: Correctly read PEB or Kernel Variables for Heap Tuning.
[NTOSKRNL]: MmCreatePeb should correctly fill out the Heap PEB parameters.
[NTOSKRNL]: MmInitSystem and mminit.c should correctly initialize and hold the Heap Tuning Parameters.
[NTOSKRNL]: CmControlVector should read the registry Heap Tuning Parameters into the real Mm variables, instaed of "Dummy".
This removes heap hacks and makes Windows NTDLL happy.

svn path=/trunk/; revision=59857