Getting closer to beta.

* Added support for removing old alerts.
* Added support for active timers on the popup.
* Added support for alerts that have yet to start.
* Added missing faction parameter to alert info.
* Fixed several bugs in the way sync settings were being stored on update from the settings page.
* Fixed several bugs causing the settings page to not properly represent the user's settings on page load.
* TODO list is a thing of the past.

Closes #1
Closes #2
Closes #3