title: Mock.Of<T> with constructor arguments
body: <p>I have a concrete class that I am mocking using <code>Mock.Of</code>, but it does not have a default constructor. Is there any way to get this to work without having to interface this or using <code>new Mock</code>? The former is overkill at this time, and the latter is uglier. I am going to try creating an extension method that returns a <code>new Mock().Object</code>, however I do not think that <code>Mock.Get</code> will work in that scenario</p>