bug(tabs): disconnect causing issues

[robertmesserle]

As posted by @mxdubois:

This causes a problem for me where the scope is disconnected after it is reconnected by onSelect during the initial load. The bug results in ng-model bindings in the initially selected tab not working until the user switches to another tab and switches back.

In what case is the $timeout necessary? If we need to keep the $timeout, we should save the promise returned by $timeout and cancel it in onSelect where we call reconnectScope. If that sounds good, I can submit a PR.

Link: 78ba497#commitcomment-9946067

[jamie-pate]

I noticed that on('$destroy') is no longer called also? (maybe?) wouldn't this be a potential leak?