Bug 1110151 - Mock the notifications to get started

- Moves the UI into iframes to always stay on index.html
- Add new permissions in the manifest to support alarms and notifications
- Utils.get_url_parameters now takes the location to parse as an argument
- Send notifications 5 seconds after posting a question/comment
- Open the thread when clicking a notification
Merge pull request #35 from Rik/navigation

Bug 1110151 - Mock the notifications to get started r=schalk