* Instead of accessing everything through a utility class, use NSFetchedResultsController instead and only perform the initial fetch when the history view is requested.
* Instead of accessing everything through a utility class, use NSFetchedResultsController instead and only perform the initial fetch when the history view is requested.

* Move thumbnail rendering onto a background thread so we don't block the UI while things are working.

smartcop/MIT-Mobile-for-iOS,xNUTs/MIT-Mobile-for-iOS,smartcop/MIT-Mobile-for-iOS,xNUTs/MIT-Mobile-for-iOS,MIT-Mobile/MIT-Mobile-for-iOS,MIT-Mobile/MIT-Mobile-for-iOS