Keep track of, and restore on launch, the last visible view controller. Fixes #397
Keep track of, and restore on launch, the last visible view controller. Fixes #397

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