Removed standalone C++ WP8.1 sample.
Updated winrt_universal/PhoneTutorial sample to use new OCV project files (wp81)
Updated winrt_universal/VideoCapture sample to use new OCV WP8.1 project files and paths.
Updated winrt_universal/VideoCapture sample to use new OCV Win8.1 Store project files and paths.
Fixed absolute path for winrt/MediaCapture (aka ImageManipulations) sample
Updated winrt/MediaCapture (aka ImageManipulations) sample and dependent projects to use new OCV Win8.1 Store project files and paths.
Updated winrt/OcvImageProcessing sample to use new OCV Win8.1 Store project files and paths.