Appupdater 1.3.1 Released

This is a bugfix release of 1.3. This fixes the major bug where the repository selection is not saved during install and on first run.

- Updated build requirements to newest versions of dependencies
- Fixed installer bug where data storage directory %APPDATA%\Appupdater isn't created
- Fixed installer bug where tray icon is not killed
- Fixed Service bug on Windows XP where is uses its own (incorrect) cache directory