IEnumerable EmptyIfNull added
comments added
ObservableCollectionEx - raise events methods made protected
TypeMapper - fixed issue where collections could not be mapped if item types were not compatible
ICollectionEx - .Move() added and implemented in CollectionEx and ObservableCollectionEx
WPF Drag and Drop - Default Drop Target will now support .Move()
TypeMapper- when source collection is empty, target will now be cleared properly