2.0

Todo:
- [x] Reactify all the things!
- [x] Move to .NET 4.5
- [x] AnyCPU
- [x] Playback without playlists
- [x] Automatic library updates
- ~~[ ] Burn ClickOnce with :fire: and move to a better installation/update system (I'm looking at you, Shimmer)~~
- ~~[ ] German translation?~~
- [x] AAC support?
- [x] High quality YouTube
- [x] YouTube video player
- [x] YouTube download
- ~~[ ] YouTube login to show favorites?~~
- [ ] Fix unit tests
- [x] Enable YouTube streaming by default
- [ ] Remote control via an Android app