attach `ui` & `event` arguments to ajax requests

related PR https://github.com/o5/grido-sandbox/pull/16

This change allows `settings.nette` to be set properly in `$.nette.ajax` thus `history.ext.js` (among others) work properly even for grido actions
Merge pull request #142 from Ciki/patch-1

Client-side: Attach `ui` & `event` arguments to ajax requests