Added class extensions which makes the subclassed collections easier to use:
Array
- [NSArray nilStoringArray];
- [NSArray nilStoringArrayWithObject:object];
- [NSArray nilStoringArrayWithArray:array];
- [NSArray nilTolerantArray];
- [NSArray nilTolerantArrayWithObject:object];
- [NSArray nilTolerantArrayWithArray:array];
Dictoinary
- [NSDictionary nilStoringDictionary];
- [NSDictionary nilStoringDictionaryWithObject:object];
- [NSDictionary nilStoringDictionaryWithDictionary:dictionary];
- [NSDictionary nilTolerantDictionary];
- [NSDictionary nilTolerantDictionaryWithObject:object];
- [NSDictionary nilTolerantDictionaryWithDictionary:dictionary];
Set
- [NSSet nilStoringSet];
- [NSSet nilStoringSetWithObject:object];
- [NSSet nilStoringSetWithSet:set];
- [NSSet nilTolerantSet];
- [NSSet nilTolerantSetWithObject:object];
- [NSSet nilTolerantSetWithSet:set];