proposal for adding a pageslide

Hi, I am developing a pageslide directive for AngularJS from a while.
I've got some positive feedback on this one, and i started with the intent of creating something clean an without dependencies.
Recently something similar has been added to foundation too http://foundation.zurb.com/docs/components/offcanvas.html, so I think it's worth adding.

I just put the latest build with the examples in the /modules/pageslide directory to start a discussion, if it sounds interesting I will integrate the tests and modules inside the ui-uils build process