Not possible to run click() in a try catch

If you have a click handler that throws an exception there's no way to capture this:

``` js
try {
syn.click(element);
} catch(err) {
// handle the error
}
```

It is because a setTimeout is used because of an IE bug: https://github.com/bitovi/syn/blob/master/src/synthetic.js#L811

Perhaps there should be an option `catchExceptions` that catches them and calls the callback with an error object.

Read src/synthetic.js around line 811 to understand the setTimeout workaround for the IE bug. Trace syn.click(element)'s callback path and determine how the proposed catchExceptions option should report handler exceptions; done means the callback receives an error object while existing click behavior remains intact.

Written by the indexing model from the issue text.