Add support for Firefox apps / Firefox OS.
Add FFOS-style icons for FFOS app-manifest.
Include all files, including new JS in appcache.
Remove installation link from about page.
Merge branch 'master' of github.com:josteink/hackerweb
Fix manifest after pull-merge.
Merge pull request #20 from josteink/master

Add support for Firefox apps / Firefox OS.
Auto uglify when the Grunt file itself is changed
Fix #22 - remove message for deprecated Chrome Frame
Bump appcache