[PATCH] add support for high entropy ASLR on Windows

[Nicholas Clifton]

Hi Daniel,

> Enabling the HIGH_ENTROPY_VA flag allows the operating system to use
> addresses outside of the 32-bit range before memory exhaustion. This
> results in a higher entropy implementation of ASLR when used with the
> DYNAMIC_BASE flag.

Approved and applied.

Cheers
   Nick