fix gravatars not showing

fix web config not saving Uri
fix issue with token login

SharedLibraryCore/Configuration/Attributes/ConfigurationIgnore.cs

@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace SharedLibraryCore.Configuration.Attributes
+{
+    [AttributeUsage(AttributeTargets.Property, Inherited = false)]
+    public class ConfigurationIgnore : Attribute
+    {
+    }
+}