[wiki] remove source code layout
[wiki] tighten up titles
[wiki] updating Xen boot instructions to mirari
[wiki] tweak index
[wiki] use mirari to boot xen vms
[wiki] update hello world to new `mirage-skeleton`
[wiki] add OPAM maintenance to index
[wiki] update article dates
[wiki] update `hello-world` to new skeleton (basic, basic_net)
Merge pull request #26 from mor1/master

update wiki
[git] ignore ocamlbuild droppings
[intro] tweak front-page content
[wiki] update presentations/slides listing
[wiki] simplify index slightly
[papers] collate papers
[blog] note openflow details have changed
[wiki] remove page about developing for old network stack
[wiki] update lwt tutorial to new world
Merge pull request #27 from mor1/master

finish reworking wiki and other elements
[wiki] missed removing old net dev post from index