What kind of CKFinder events are there?

Hi. 

What kind of events / hooks does CKFinder support? Something like onRename, onDelete and onUpload when they fire successfully? Also something for file being moved from folder to folder or folder renaming are both important to keep URLs for already input images working. I cant find the documentation site, derp.

Serverside would be nice but JS events are good enough. Also, JS wouldn't be so hard to implement in CKF if they are not there already (why not?). I could build a backend ajax handler for JS events easy but I just need to know when they execute. At minimum looking for something like this (syntax doesn't matter):

CKFinder.on('delete', function('path') {
    // Fire my backend AJAX onDelete logic here, notify the user based on JSON response
});

I need to post-process things on each of these events, such as edit grayscale JPGs to regular gray JPGs onUpload, update paths onMove and replace with placeholders & inform the user where that file was being used onDelete - or even validate beforeDelete that the file is not used. Stuff like that, kind of important.

Sutff like this should be really easy to implement, right? Is CKF in gitHub yet?