-Added StringEscapeHandling with options to escape HTML and non-ASCII characters

-Added feature to deserialize ISet<T> properties as HashSet<T>
-Fixed ReferenceLoopHandling not being used when serializing ISerializable and dynamic values

Src/Newtonsoft.Json.Tests/Serialization/JsonSerializerTest.cs

@@ -7154,6 +7154,68 @@ Parameter name: value",
       Assert.IsNull(c2.MyNullableDecimal);
     }
 #endif
+
+#if !(PORTABLE || NET20 || NET35 || WINDOWS_PHONE)
+    [Test]
+    public void HashSetInterface()
+    {
+      ISet<string> s1 = new HashSet<string>(new[] {"1", "two", "III"});
+
+      string json = JsonConvert.SerializeObject(s1);
+
+      ISet<string> s2 = JsonConvert.DeserializeObject<ISet<string>>(json);
+
+      Assert.AreEqual(s1.Count, s2.Count);
+      foreach (string s in s1)
+      {
+        Assert.IsTrue(s2.Contains(s));
+      }
+    }
+#endif
+
+    public class NewEmployee : Employee
+    {
+        public int Age { get; set; }
+
+        public bool ShouldSerializeName()
+        {
+            return false;
+        }
+    }
+
+    [Test]
+    public void ShouldSerializeInheritedClassTest()
+    {
+      NewEmployee joe = new NewEmployee();
+      joe.Name = "Joe Employee";
+      joe.Age = 100;
+
+      Employee mike = new Employee();
+      mike.Name = "Mike Manager";
+      mike.Manager = mike;
+
+      joe.Manager = mike;
+
+      //StringWriter sw = new StringWriter();
+
+      //XmlSerializer x = new XmlSerializer(typeof(NewEmployee));
+      //x.Serialize(sw, joe);
+
+      //Console.WriteLine(sw);
+
+      //JavaScriptSerializer s = new JavaScriptSerializer();
+      //Console.WriteLine(s.Serialize(new {html = @"<script>hi</script>; & ! ^ * ( ) ! @ # $ % ^ ' "" - , . / ; : [ { } ] ; ' - _ = + ? ` ~ \ |"}));
+
+      string json = JsonConvert.SerializeObject(joe, Formatting.Indented);
+
+      Assert.AreEqual(@"{
+  ""Age"": 100,
+  ""Name"": ""Joe Employee"",
+  ""Manager"": {
+    ""Name"": ""Mike Manager""
+  }
+}", json);
+    }
   }
 
 #if !(SILVERLIGHT || NETFX_CORE || PORTABLE)