Changed height:100% to min-height:100%

Android 4.2.2 Chrome had an issue with the background watermark image. The image was cutting off before it reached the end of the page.
Merge branch 'master' of https://github.com/a6wu/CampusKit into a6wu-master

Conflicts:
	htdocs/assets/css/main.css
appcache version bump
Firefox needs height
Merge branch 'master' into android-fastclick-fix
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Merge branch 'master' into android-fastclick-fix