* Moving settings to roaming application data.
** This is settings version 3.
** Deleting the LocalState\settings.json file.
* Reducing redundancy in websitesCollection. The id of each website object and the property SiteUrl are the same. Removing the property SiteUrl.
* Moving the LastAllRead property to ContentManager.
* Removing the LastAllRead value from questions.json since now it is in the roaming app data.
Query websites in parallel.