1.1.0

Added the possibility to specify an AdapterDelegate as fallback in case no other AdapterDelegate can handle a certain item in adapter's data source. Also added AbsFallbackAdapterDelegate that can (but don't have to) be used as base class for an fallback AdapterDelegate.

AdapterDelegate myFallBackDelegate =  ... ;
adapterDelegateManager.setFallbackAdapterDelegate( myFallbackDelegate );