Make altering the menu via JS easier

[mrclay]

Now that the menus can arrive at any time, this makes it difficult to reliably alter the menu via JS. (In my case I need to make a backend call to CometChat to see if the user is online and if so alter an item.)

It would be handy to have a hook fire when the menu was added to the DOM. Ideally the hook would also receive the GUID of the user.

[jdalsem]

Feel free to provide a PR

[Srokap]

We need to make sure that such hooks fire regardless of the way menu was added to the DOM, ie. rendered with whole page or added later via ajax.

[mrclay]

Yeah. I linked this to the core ticket so we could discuss that there

[jdalsem]

Closing this as core now delivers the hover menu via ajax, which makes this plugin obsolete