Mark page as 'full-screen-capable' for iOS devices

Radiator view is often displayed on a iPad as real-time build dashboard.
To maximize the screen real-estate, the radiator view should take the
whole screen, hiding address bar of MobileSafari. To achieve this, add
<meta name="apple-mobile-web-app-capable" content="yes" /> to the HTML
of radiator view. Documentation of this tag is here:
http://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariHTMLRef/Articles/MetaTags.html

[FIXED JENKINS 8981]
Show last completed build, skipping aborted ones

[FIXED JENKINS 8222]
Ignore old matrix combinations.

Old combinations appear in current builds, though they are irrelevant.

[FIXED JENKINS 20089]