Update ASP.NET 5 versions for ASP.NET Core.

See https://github.com/aspnet/Announcements/issues/144 for more information.

test/ServerComparison.TestSites/project.json

@@ -1,29 +1,24 @@
 {
   "version": "1.0.0-*",
-
   "dependencies": {
     "Microsoft.AspNetCore.IISPlatformHandler": "1.0.0-*",
     "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-*",
-    "Microsoft.AspNetCore.Server.WebListener": "1.0.0-*",
+    "Microsoft.AspNetCore.Server.WebListener": "0.1.0-*",
     "Microsoft.AspNetCore.WebUtilities": "1.0.0-*",
     "Microsoft.Extensions.Configuration.Json": "1.0.0-*",
     "Microsoft.Extensions.Logging.Console": "1.0.0-*",
     "Microsoft.Net.Http.Headers": "1.0.0-*"
   },
-
   "commands": {
     "web": "ServerComparison.TestSites"
   },
-
   "compilationOptions": {
     "emitEntryPoint": true
   },
-
   "frameworks": {
-    "dnx451": { },
-    "dnxcore50": { }
+    "dnx451": {},
+    "dnxcore50": {}
   },
-
   "publishExclude": [
     "node_modules",
     "bower_components",
@@ -36,4 +31,4 @@
     "node_modules",
     "bower_components"
   ]
-}
+}