diff --git a/README.TXT b/README.TXT
index cab8829..2f65c26 100644
--- a/README.TXT
+++ b/README.TXT
@@ -1,7 +1,3 @@
-# cBrain contribution guide
-
-There are currently 2 branches *master* and *dev*. The branch *dev* represents our synchronization with the original fork. As such changes which we expect to push back should be made in *dev* and subsequently merged to *master*. Changes which are purely internal, such as our own versioning, should be made in *master*.
-
 -----------------------------------------------------------------
 Ramone - A C# library for working with REST services and Web APIs
 -----------------------------------------------------------------
diff --git a/Ramone/MediaTypes/Xml/XmlSerializerCodec.cs b/Ramone/MediaTypes/Xml/XmlSerializerCodec.cs
index 938d1fb..2dd5899 100644
--- a/Ramone/MediaTypes/Xml/XmlSerializerCodec.cs
+++ b/Ramone/MediaTypes/Xml/XmlSerializerCodec.cs
@@ -2,7 +2,7 @@
 using System.Xml.Serialization;
 using System;
 using System.Collections.Generic;
-
+using System.Collections.Concurrent;
 
 namespace Ramone.MediaTypes.Xml
 {
@@ -10,12 +10,12 @@ public class XmlSerializerCodec : XmlStreamCodecBase
   {
     // The XmlSerializer is thread safe according to the online docs, so it should be safe
     // to share instances.
-    static Dictionary<Type, XmlSerializer> Serializers { get; set; }
+    static ConcurrentDictionary<Type, XmlSerializer> Serializers { get; set; }
 
 
     static XmlSerializerCodec()
     {
-      Serializers = new Dictionary<Type, XmlSerializer>();
+      Serializers = new ConcurrentDictionary<Type, XmlSerializer>();
     }
 
 
@@ -38,11 +38,7 @@ protected override void WriteTo(object item, XmlWriter writer, WriterContext con
 
     protected XmlSerializer GetSerializer(Type t)
     {
-      if (!Serializers.ContainsKey(t))
-      {
-        Serializers[t] = CreateSerializer(t);
-      }
-      return Serializers[t];
+      return Serializers.GetOrAdd(t, CreateSerializer);
     }
 
 
diff --git a/Ramone/Ramone.csproj b/Ramone/Ramone.csproj
index a2791c6..f195cc8 100644
--- a/Ramone/Ramone.csproj
+++ b/Ramone/Ramone.csproj
@@ -8,14 +8,14 @@
     <Reference Include="System.Web" />
     <Reference Include="System.Net.Http" />
   </ItemGroup>
-  
+
   <PropertyGroup>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
-    <PackageProjectUrl>https://github.com/cBrain-dk/Ramone/</PackageProjectUrl>
-    <RepositoryUrl>https://github.com/cBrain-dk/Ramone/</RepositoryUrl>
+    <PackageProjectUrl>https://github.com/JornWildt/Ramone</PackageProjectUrl>
+    <RepositoryUrl>https://github.com/JornWildt/Ramone.git</RepositoryUrl>
     <RepositoryType>GIT</RepositoryType>
     <PackageTags>REST JSON XML HTTP WEB API</PackageTags>
-    <Version>4.1.5.2-cbrain</Version>
+    <Version>4.1.5.0</Version>
     <Authors>Jørn Wildt and others</Authors>
     <Company>Jørn Wildt</Company>
     <Description>Ramone is a C# library that simplifies access to HTTP based Web APIs and REST services. It has a strong focus on REST and hypermedia and implements elements of the Uniform Interface as first class citizens of the API.
@@ -23,9 +23,9 @@
 Ramone has built-in support for serialization of simple objects as JSON, XML, URL-encoding and multipart encoding.</Description>
     <Copyright>Copyright ©2010, Ramone team</Copyright>
     <Product />
-    <PackageReleaseNotes>Use System.Net.Http.Headers.AuthenticationHeaderValue to parse authentication header.</PackageReleaseNotes>
-    <AssemblyVersion>4.1.5.2</AssemblyVersion>
-    <FileVersion>4.1.5.2</FileVersion>
+    <PackageReleaseNotes>Rebuild with the right code - was missing code from previous versions.</PackageReleaseNotes>
+    <AssemblyVersion>4.1.5.0</AssemblyVersion>
+    <FileVersion>4.1.5.0</FileVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -38,4 +38,4 @@ Ramone has built-in support for serialization of simple objects as JSON, XML, UR
     <Folder Include="Properties\" />
   </ItemGroup>
 
-</Project>
+</Project>
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