2.0.0-preview1

Features

• Add WebHostBuilderContext to ConfigureLogging and remove UseLoggerFactory(this IWebHostBuilder hostBuilder, Action<WebHostBuilderContext, LoggerFactory> configure) (#1015)
• Make the HostContext available to extension methods on IWebHostBuilder (#1014)
• Add support for executing IHostingStartup in the app assembly (#1000)
• Server addresses configuration enhancements (#968)
• TestServer IServer.Features is null and makes it overly difficult to test middleware relying on ServerFeatures being populated. (#967)
• First class Configuration and Logging in WebHostBuilder (#955)
• Add Platform lightup hook (#951)
• Graceful Server Shutdown (#947)
• Consider renaming the methods on IApplicationLifetimeEvents (and maybe the interface) (#895)
• Adding EventSource events to Hosting (#883)

Bugs Fixed

• [IntegrationTesting] If IISExpress fails to start, IISExpressDeployer null refs in Dispose (#1053)
• IHostingStartup should be called before we call ConfigureAppConfiguration callbacks (#1050)
• Remove PreferHostingUrls from WebHostOptions and read the value from config during EnsureServer() (#1045)
• Make WebHost internal to avoid type conflict (#1030)
• Logger is disposed too soon (#984)
• Stop adding "http://localhost:5000" to empty IServerAddressesFeatures (#917)
• TestServer should call IHttpContextFactory.Create with valid featureCollection (#896)
• Consider removing the dependency between IApplicationLifetime and IApplicationLifetimeEvents (#894)