Tweak installation instructions
Merge branch 'master' of github.com:mirage/mirage-www
travis: record if its a pull request or not (we dont want to update live site on a pull req)
travis: remove old binary if one exists
Merge branch 'master' of github.com:avsm/mirage-www

Conflicts:
	.travis-ci.sh
Merge pull request #39 from amirmc/master

add overview post to mirage wiki
Fix Amazon EC2 tools url
fix ec2.sh url
corrections to ec2 instructions
Merge pull request #40 from avsm/master

Fixes to Amazon EC2 tools instructions
replace year 2011 with year 2013 in page footer
Merge pull request #41 from cko/firstpatch

replace year 2011 with year 2013 in page footer