Add OperatorAdapterViewOnItemClick to observe OnItemClick events in AdapterViews. Resolve #19.
Move OperatorAdaperViewOnItemClick to rx.android.operators package
Remove useless generics regarding OperatorAdapterViewOnItemClick
Make OnItemClickEvent class non-final
Break up tests from OperatorAdapterViewOnItemClickTest into separated scenarios
Merge branch '0.x' to 'naghtarr/itemclicks'
Move OperatorSharedPreferenceChange to rx.android.operators package
Merge pull request #20 from naghtarr/naghtarr/itemclicks

Add OperatorAdapterViewOnItemClick to observe OnItemClick events in AdapterViews. Resolve #19.