Pinning missed tools and dependencies

Author: pranavkm

samples/IdentitySample.Mvc/project.json

@@ -47,8 +47,8 @@
     }
   },
   "tools": {
-    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-*",
-    "Microsoft.EntityFrameworkCore.Tools.DotNet": "1.0.0-*"
+    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.1.0-preview4-final",
+    "Microsoft.EntityFrameworkCore.Tools.DotNet": "1.1.0-preview4-final"
   },
   "publishOptions": {
     "include": [