add an ajaxCounter to the pager object so it can index each request and refuse to process old requests and only process the last one, this is important because when you execute multiple requests, sometimes the old requests return AFTER the new request has returned, meaning you get a mixed up data, this will stop that, even though really it should cancel the ajax request, but once the server has it, I don't know how you can do that.
Merge pull request #443 from christhomas/master

add an ajaxCounter to the pager object so it can index each request and ...