Start to "steal" from https://github.com/nhsevidence/witness/blob/master/src/Witness.MSBuild/IisConfiguration.cs
Copy IIS config from https://github.com/nhsevidence/witness/blob/master/src/Witness.MSBuild/IisConfiguration.cs
Remove Witness dependent stuff
Try to use the IIS Express stuff
Try to use the IIS Express stuff
Cleaning the IISExpress stuff
Merge pull request #323 from fsharp/IIS

IIS express config during build