Remove extra {} syntax in the events object

[matthewp]

Posted by @justinbmeyer from canjs/canjs#3570

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I would like to see the events object change to avoid the {} in "{data} thing" sorta stuff, especially since the element is the view model now.

Could we have something like:

events: {
  connected: function(){
    setInterval(() => {
                this.time = new Date();
            }, 1000);
  },
  disconnected: function(){},
  "li click": function(){}
}