Add Xen/ARM blog post
line breaks

Nothing but line breaks, I promise!
add cubieboard2 pic to arm post
fixes for pipe table and style of code segments

Table is taken from
https://github.com/talex5/mirage-www/commit/5f2496767d0df8931852088dd6efc21cdb01439a
minor changes

Change refs to Mirage to be of the form 'Mirage v1'
add post to site
Updated instructions for latest mirage-xen-minios
Get mirage-xen-minios through OPAM
Merge pull request #2 from talex5/arm-blog

Updated instructions for latest mirage-xen-minios
Merge branch 'master' into arm-blog

Conflicts:
	src/data.ml
add arm post to site
add placeholder for release annoucement

Since data.ml changes with each merged PR it introduces
merge conflicts with PRs that are already open. I added
a placeholder for the release announcemnt in this commit
to try and mitigate this.
tweak title to have fewer 'introducing'