Create 2013-07-22.md

Added incident report for 22 Jul 2013 - Royal birth
Add healthcheck detail to incident report

Also renamed incident report with incorrect filename.
This got stepped on in merge. Don't want.
Remove merge chunks.
Merge pull request #1248 from guardian/dashboard

Quick big screen display with common styling.
Merge pull request #1249 from guardian/incident-report-22-jul-2013

Royal birth live blog incident report
Merge branch 'master' of https://github.com/guardian/frontend into dashboard-ajax-fix

Conflicts:
	admin/app/views/radiator.scala.html