Make DOMEvent case classes reflect browser's Event object, for simpler encoding

[nafg]

No description provided.

[nafg]

Maybe not --- data:text/html,Click me yields Uncaught TypeError: Converting circular structure to JSON on Chrome

[nafg]

Would need to only use own json stringify function, and stop at recursion.
Does === work on recursive structures? E.g. what happens if you do:

var o = { x: 10 }
o.o = o

alert(o.o === o)