Added Wpf test client with QrCode.

Added a Wpf test client that uploads an image to the api, displays the
image along with a QrCode representing the image location.
Cleansed. Updated readme

Added TestClient.Wpf to Readme. Cleansed code of NSFW, nonsense and
other potentially embarrassing bits.
commit .csproj

How did that slip through the cracks?
Merge pull request #1 from jhalbrecht/master

Merge TestClient.Wpf