New ASLR Patch

[Shawn Webb]

Hey All,

I've submitted a new revision of our ASLR patch to Phabric. It can be
applied to 11-CURRENT. The main changes include removal of the MAP_32BIT
hack for amd64, a couple bug fixes, and stylistic changes requested by a
few people. I'm looking for commentary and volunteers for testing. The link
to Phabric is below and you can download the raw patch from there.

https://reviews.freebsd.org/D473

Thanks,

Shawn