Fix -[CoreDataManger getObjectForEntity:attribute:value:].
Fix -[CoreDataManger getObjectForEntity:attribute:value:].

- NSPredicate’s format syntax automatically quotes %@ values. %K is needed for keys.
- Fixes duplicate filters in Dining. #36
- Fixes Tours loading issues. #38

xNUTs/MIT-Mobile-for-iOS,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