Bug 1060723 - Call info page isn't updated after a call dispatched from ...

...it ends
```js
function dispatchGroupCreateOrUpdateEvt(group) {
  var createOrUpdateEvt = new CustomEvent('CallLogDbNewCall',
    {detail: {group: groupObject}});
  window.dispatchEvent(createOrUpdateEvt);
}
```
I actually really think we should do this so that we don't run into a situation where we have event dispatching code scattered everywhere. It also makes code inspection easier since you can just look for callsites to ```dispatchGroupCreateOrUpdateEvt```.