[IPHONEAPP-642] removed TODO comments updated other comments
[IPHONEAPP-642] removed TODO comments updated other comments

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