-Fixed incorrect NuGet targets on portable assembly

-Fixed using JTokenEqualityComparer with JProperties that have no value

Build/build.ps1

@@ -19,7 +19,7 @@
   $builds = @(
     @{Name = "Newtonsoft.Json"; TestsName = "Newtonsoft.Json.Tests"; Constants=""; FinalDir="Net45"; NuGetDir = "net45"; Framework="net-4.0"; Sign=$true},
     @{Name = "Newtonsoft.Json.Portable"; TestsName = "Newtonsoft.Json.Tests.Portable"; Constants="PORTABLE"; FinalDir="Portable"; NuGetDir = "portable-net45+wp80+win8+wpa81"; Framework="net-4.0"; Sign=$true},
-    @{Name = "Newtonsoft.Json.Portable40"; TestsName = "Newtonsoft.Json.Tests.Portable40"; Constants="PORTABLE40"; FinalDir="Portable40"; NuGetDir = "portable-net40+sl4+wp7+win8+wpa81"; Framework="net-4.0"; Sign=$true},
+    @{Name = "Newtonsoft.Json.Portable40"; TestsName = "Newtonsoft.Json.Tests.Portable40"; Constants="PORTABLE40"; FinalDir="Portable40"; NuGetDir = "portable-net40+sl5+wp80+win8+wpa81"; Framework="net-4.0"; Sign=$true},
     @{Name = "Newtonsoft.Json.WinRT"; TestsName = $null; Constants="NETFX_CORE"; FinalDir="WinRT"; NuGetDir = "netcore45"; Framework="net-4.5"; Sign=$true},
     @{Name = "Newtonsoft.Json.Net40"; TestsName = "Newtonsoft.Json.Tests.Net40"; Constants="NET40"; FinalDir="Net40"; NuGetDir = "net40"; Framework="net-4.0"; Sign=$true},
     @{Name = "Newtonsoft.Json.Net35"; TestsName = "Newtonsoft.Json.Tests.Net35"; Constants="NET35"; FinalDir="Net35"; NuGetDir = "net35"; Framework="net-2.0"; Sign=$true},

Src/Newtonsoft.Json.Tests/Linq/JTokenEqualityComparerTests.cs

@@ -24,6 +24,7 @@
 #endregion
 
 using System.Collections.Generic;
+using System.Linq;
 #if !NETFX_CORE
 using NUnit.Framework;
 #else
@@ -38,6 +39,22 @@ namespace Newtonsoft.Json.Tests.Linq
     [TestFixture]
     public class JTokenEqualityComparerTests : TestFixtureBase
     {
+        [Test]
+        public void CompareEmptyProperties()
+        {
+            JObject o1 = JObject.Parse("{}");
+            o1.Add(new JProperty("hi"));
+
+            JObject o2 = JObject.Parse("{}");
+            o2.Add(new JProperty("hi"));
+
+            JTokenEqualityComparer c = new JTokenEqualityComparer();
+            Assert.IsTrue(c.Equals(o1, o2));
+
+            o1["hi"] = 10;
+            Assert.IsFalse(c.Equals(o1, o2));
+        }
+
         [Test]
         public void JValueDictionary()
         {

Src/Newtonsoft.Json/Linq/JPropertyKeyedCollection.cs

@@ -221,6 +221,9 @@ namespace Newtonsoft.Json.Linq
                 JProperty p1 = (JProperty)keyAndProperty.Value;
                 JProperty p2 = (JProperty)secondValue;
 
+                if (p1.Value == null)
+                    return (p2.Value == null);
+
                 if (!p1.Value.DeepEquals(p2.Value))
                     return false;
             }