Remove duplicate `position: relative`

`position: relative` is set on `.views` immediately above.
Remove duplicate `height: 100%`

`height: 100%` is set on `.page` by the call to `.full-size()` immediately above.
Merge pull request #17 from ptb/patch-1

Remove duplicate `position: relative`
Merge pull request #18 from ptb/patch-2

Remove duplicate `height: 100%`
iOS 6 fixes
Preloader fix for iOS6

Move animation to .preloader, iOS6 doesn’t support animation on pseudo
elements
New small preloader overlay
0.6.0 Release

- iOS 6 fixes
- New preloaded overlay
- Flexbox fallback