Fix a crash when using a SortedList as the source for a CollectionView.
Implement batch updating for CollectionViewDataSource.
Refactor Demo project to be Universal and utilize CollectionViews on iPad and TableViews on iPhone.
Add batchUpdating switch for CollectionView Data Source.
Check for NSNotFound when searching for index of object to remove.
Add some checks for index bounds.
Added Object Update Notification Subscription to RZArrayCollectionList.
Fix Object Update Notification propagation from source list on RZFilteredCollectionList.
Added Update Notifications for ListItemObject in Demo Project.
If you create an array list with a nil array it will instead create it with an array.
Merge pull request #6 from Raizlabs/AR-NilArrayInitializer

Allow initialization with a nil array
Reload tableview data after creating collection list data source. #7
Updated gitignore to ignore .DS_Store
Add removeAllObjects method to RZArrayCollectionList. #9
Update section index offset when inserting new sections into array list
Merge pull request #8 from Raizlabs/ND-TableViewInit

Fix for initializing tableview with collection list data source
Fixed index path for object updates when removing a section
Merge pull request #10 from Raizlabs/ND-RemoveSectionFix

Fixed index path for object updates when removing a section
Added description method to ListItemObject.
Implement moveSourceObject:fromSourceIndexPath:toSourceIndexPath.