The infrastructure for publishing notifications has moved to the .Net framework. See the new DiagnosticSource and DiagnosticListerner APIs in the System.Diagnostics.DiagnosticSource package. The infrastructure provided here is for subscribing to events using runtime-generated proxies.
AppVeyor:
Travis:
This project is part of ASP.NET 5. You can find samples, documentation and getting started instructions for ASP.NET 5 at the Home repo.