Rethrow exceptions in ViewStateLocator

[Svechnikov]

Consider this situation:

1. MvpPresenter.Binder.bind calls ViewStateLocator.getViewState
2. Inside ViewStateLocator.getViewState a call to Class.forName for some reason raises an exception
3. ViewStateLocator.getViewState silently consumes this exception and returns null
4. Later on we get NPE when calling something like viewState.showMessage() in presenter. The reason for NPE is unclear and difficult to debug.

I propose not to silently consume exception.