pagePiling 2.5.3

- Fixed bug when scrolling with an Apple trackpad alvarotrigo#87
- Improved scrolling detection so it won’t scroll when scrolling
horizontally on Apple trackpads.
- Improved scrolling to prevent double scroll when scrolling very fast
on Apple trackpad or kinetic scrolling devices
- Improved comments so they won’t get deleted on minification.

- Fixed bug with `verticalCentered:true` and pp-scrollable alvarotrig…

…o#41

- JSLint validation

- Improved scrollable feature

- Added new feature to create an scrollable section by using `pp-scro…

…llable`.

Update bower.json

- Solved problem with navigation bullets alvarotrigo#38

- Added compatibility for IE 11 touch screen alvarotrigo#34

- Solved bug with IE 11 for Windows Phone

- Added `easeInQuart` effect inside the plugin 
- Added new feature: a class is added to the body on section change

- Fixed bug causing `afterLoad` not to be fired when `css3:false` alv…

…arotrigo#24

- Fixed bug when using css3:false or using the plugin in IE9 or lower.

- Updaing versio numbers alvarotrigo#15