Remove old import targets
Changed signature of IMvxViewModelLocator to throw an exception in case a viewmodel fails during creation or initialisation.
Merge pull request #838 from jesperll/Mvx837-ThrowExceptionsInViewModelLoader

Allow IMvxViewModelLocator to throw exceptions
Merge pull request #833 from lothrop/3.5

Fix import targets for Unified API
Added missing UISegmentedControl bindings for SelectedSegment
Updated to Unified API, removed tabs, reformatted.