React to upgrade to preview2.1 CLI

tools/NuGetPackager/project.json

@@ -1,5 +1,4 @@
 {
-  "version": "1.0.0-*",
   "buildOptions": {
     "emitEntryPoint": true
   },
@@ -7,7 +6,7 @@
   "dependencies": {
     "Microsoft.NETCore.App": {
       "type": "platform",
-      "version": "1.0.0"
+      "version": "1.1.0-*"
     },
     "Microsoft.DotNet.ProjectModel": "1.0.0-*",
     "Microsoft.DotNet.Cli.Utils": "1.0.0-*",
@@ -15,8 +14,6 @@
   },
 
   "frameworks": {
-    "netcoreapp1.0": {
-      "imports": "dnxcore50"
-    }
+    "netcoreapp1.1": { }
   }
 }