Swipeableview spike

A simple view that will slide its children in once.

![9xmvg](https://cloud.githubusercontent.com/assets/1848238/3424395/1a38b5e4-ffce-11e3-9193-d710db154fd9.gif)


yep, that's what I've done in the real usage. However, there's no way to stop someone from calling ``setOnPageChangeListener()`` and overriding the internal logic :confused: