Adjust Xamarin.iOS archive helper params. #693
When converting a Xamarin project from RAKE to FAKE, I was having issues using the XamarinHelper
Since mdtool can take both a project/solution file parameter and a project name parameter, I adjusted it to accept both.
Here are some versions I was able to get to work with a simple Xamarin.Forms project I created with a solution at the same level as the build.fsx file being processed.