Update .NET Standard library package to 1.6.1

src/JsonWebTokens/project.json

@@ -1,12 +1,12 @@
 {
-  "version": "1.2.0",
+  "version": "1.3.0",
   "title": "JsonWebTokens",
   "authors": [ "Henk Mollema" ],
   "copyright": "Copyright 2016 Henk Mollema",
   "description": "JSON Web Tokens implementation for .NET Core.",
   "packOptions": {
     "owners": [ "Henk Mollema" ],
-    "tags": [ "jwt", "tokens", ".net" ],
+    "tags": [ "jwt", "tokens", "jsonwebtoken", ".net", "net", "core" ],
     "projectUrl": "https://github.com/henkmollema/Jwt.NET",
     "licenseUrl": "https://github.com/henkmollema/Jwt.NET/blob/master/LICENSE",
     "repository": {
@@ -20,15 +20,12 @@
   },
 
   "dependencies": {
+    "NETStandard.Library": "1.6.1",
     "Newtonsoft.Json": "9.0.1"
   },
 
   "frameworks": {
-    "net451": { },
-    "netstandard1.3": {
-      "dependencies": {
-        "System.Security.Cryptography.Algorithms": "4.2.0"
-      }
-    }
+    "net451": {},
+    "netstandard1.3": {}
   }
 }