Adding support for ASP.NET 5 projects in Kudu
    Note: In ASP.NET 5 .sln files are optional. They will only be present if the project was created by Visual Studio but this is not a requirement in general for ASP.NET 5. Hence the logic for detecting is done twice, once in the found-solution path, and once in the no-solution path.
    This fixes #1333
fix deleting of deployment script