fully reset scroll pagination on switching tabs
general cleanup
should take care of collections as well
move scroll event into child render decorator.

The scroll event has to go somewhere in the render chain because render is
called directly in the `changePage` method of the page view superclass.
Merge branch 'master' into 47-scroll-triggers
fixed indentation
explore collection should work now too
Merge pull request #47 from goodybag/47-scroll-triggers

InfiniScroll triggers after leaving page