add infinite_scroll_load_javascript filter to shouldLoadJavascript() method
Fix to make it working with 1.9.0 jQuery

jQuery at 1.9.0 don't have $.event.handle property so you need to use jQuery's API.
Adding fix for SmartScroll for jQuery 1.9
Merge pull request #316 from helgatheviking/master

Filter for shouldLoadJavascript() method
MBH: updating readme, pulled from upstream