Video class definition does not match API results

[tiesont]

It appears that the API has changed since this project was created. The project can successfully send a video to be encoded, but the deserialization fails.

I was able to track it down to the fps property in the Video class definition (Domain\Video.cs), which is incorrectly set as a nullable int Updating it to be a nullable float solves the problem.

I'm not terribly proficient at using Git, but I could send a pull request at some point if need be.