Update the tests to target netcoreapp1.0

Author: kevinchalet

test/AspNet.Security.OAuth.Introspection.Tests/project.json

@@ -12,10 +12,10 @@
   },
 
   "frameworks": {
-    "netstandardapp1.5": {
+    "netcoreapp1.0": {
       "dependencies": {
         "dotnet-test-xunit": "1.0.0-dev-*",
-        "NETStandard.Library": "1.5.0-*"
+        "Microsoft.NETCore.App": { "type": "platform", "version": "1.0.0-*" }
       },
 
       "imports": [

test/AspNet.Security.OAuth.Validation.Tests/project.json

@@ -12,11 +12,12 @@
   },
 
   "frameworks": {
-    "netstandardapp1.5": {
+    "netcoreapp1.0": {
       "dependencies": {
         "dotnet-test-xunit": "1.0.0-dev-*",
+        "Microsoft.NETCore.App": { "type": "platform", "version": "1.0.0-*" },
         "moq.netcore": "4.4.0-*",
-        "NETStandard.Library": "1.5.0-*"
+        "System.Diagnostics.TraceSource": "4.0.0-*"
       },
 
       "imports": [