Migrate tests, tools and samples to portable

Author: pakrym

test/dotnet-razor-tooling.Test/project.json

@@ -1,8 +1,12 @@
 {
   "testRunner": "xunit",
   "frameworks": {
-    "netstandardapp1.5": {
+    "netcoreapp1.0": {
       "dependencies": {
+        "Microsoft.NETCore.App": {
+          "version": "1.0.0-*",
+          "type": "platform"
+        },
         "dotnet-razor-tooling": "1.0.0-*",
         "dotnet-test-xunit": "1.0.0-dev-*",
         "Microsoft.AspNetCore.Razor.Test.Sources": {
@@ -13,14 +17,14 @@
           "version": "1.0.0-*",
           "type": "build"
         },
-        "NETStandard.Library": "1.5.0-*",
         "System.Diagnostics.Process": "4.1.0-*",
         "xunit": "2.1.0"
       },
       "imports": [
         "dnxcore50",
         "portable-net451+win8"
-       ]
+      ]
     }
-  }
+  },
+  "dependencies": {}
 }