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Fixes #16 and #17.

This changes the location of several folders to match Windows standards.  The full list can be found at https://msdn.microsoft.com/en-us/library/windows/desktop/dd378457(v=vs.85).aspx, though you will have to go to other MSDN articles to get details of their intended use:
[Local App Data](https://msdn.microsoft.com/en-us/windows/uwp/app-settings/store-and-retrieve-app-data#local-app-data)
[Roaming App Data](https://msdn.microsoft.com/en-us/windows/uwp/app-settings/store-and-retrieve-app-data#roaming-data)
[Program Data](https://msdn.microsoft.com/en-us/library/mt674655%28v=vs.85%29.aspx#10._apps_must_install_to_the_correct_folders_by_default)

Note: This is a breaking change so if this project follows semantic versioning it should be released as a major version bump.

Add Windows support.