finish amd64 port of DragonFly GSoC project

[Jordan Gordeev <jgordeev@xxxxxx>]

Hi!
My name is Jordan Gordeev and I'm a Google Summer of Code student.
This summer I'll work on finishing the amd64 port of DragonFly.
Results of my work will be available from the git repo at 
git://leaf.dragonflybsd.org/~smtms/dragonfly.git.
If you've got questions, don't hesitate to ask.