I should work better now.
At the moment, I reverted JDom and removed the change I did.
The new Ajax framework layer is almost there, but I will publish it in the 'Pure 3.x' version when it comes.
Then, this Ajax framework innovation will not grow much. Just to handle the minimum :
- Ajax groups
- Ajax form submit + file uploader (in the edit modals)
- Ajax toolbar (still for the edit modals)
I think nothing more then, because for more Ajax features, it will be handled by Angular JS (not started yet)
So this layer is just waiting that Joomla make a move in that direction.