Moves tests settings the the App.config so that they can be more easily configured in a single location.

This does remove the .NET 2.0 restriction and puts a dependency on the System.Configuration 4.0.0 - replacing the System.Configuration with a 2.x version should work equally as well.
Merge pull request #4 from rustyswayne/master

Moves tests settings the the App.config so that they can be more easily configured in a single location.