Make System.Reflection.Extensions a netstandard dependency

src/Microsoft.Extensions.Localization/project.json

@@ -22,14 +22,14 @@
     "Microsoft.AspNetCore.Hosting.Abstractions": "1.1.0-*",
     "Microsoft.Extensions.DependencyInjection.Abstractions": "1.1.0-*",
     "Microsoft.Extensions.Localization.Abstractions": "1.1.0-*",
-    "Microsoft.Extensions.Options": "1.1.0-*",
-    "System.Reflection.Extensions": "4.0.1-*"
+    "Microsoft.Extensions.Options": "1.1.0-*"
   },
   "frameworks": {
     "net451": {},
     "netstandard1.3": {
       "dependencies": {
         "System.Collections.Concurrent": "4.0.12-*",
+        "System.Reflection.Extensions": "4.0.1-*",
         "System.Resources.Reader": "4.0.0-*"
       }
     }