Integrated latest protoc.exe (2.3) and added/updated test protos
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestImportLiteProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestImportLiteProtoFile.cs
new file mode 100644
index 0000000..a98fb92
--- /dev/null
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestImportLiteProtoFile.cs
@@ -0,0 +1,196 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+
+using pb = global::Google.ProtocolBuffers;
+using pbc = global::Google.ProtocolBuffers.Collections;
+using pbd = global::Google.ProtocolBuffers.Descriptors;
+using scg = global::System.Collections.Generic;
+namespace Google.ProtocolBuffers.TestProtos {
+  
+  public static partial class UnitTestImportLiteProtoFile {
+  
+    #region Extension registration
+    public static void RegisterAllExtensions(pb::ExtensionRegistry registry) {
+    }
+    #endregion
+    #region Static variables
+    internal static pbd::MessageDescriptor internal__static_protobuf_unittest_import_ImportMessageLite__Descriptor;
+    internal static pb::FieldAccess.FieldAccessorTable<global::Google.ProtocolBuffers.TestProtos.ImportMessageLite, global::Google.ProtocolBuffers.TestProtos.ImportMessageLite.Builder> internal__static_protobuf_unittest_import_ImportMessageLite__FieldAccessorTable;
+    #endregion
+    #region Descriptor
+    public static pbd::FileDescriptor Descriptor {
+      get { return descriptor; }
+    }
+    private static pbd::FileDescriptor descriptor;
+    
+    static UnitTestImportLiteProtoFile() {
+      byte[] descriptorData = global::System.Convert.FromBase64String(
+          "Cipnb29nbGUvcHJvdG9idWYvdW5pdHRlc3RfaW1wb3J0X2xpdGUucHJvdG8S" + 
+          "GHByb3RvYnVmX3VuaXR0ZXN0X2ltcG9ydBokZ29vZ2xlL3Byb3RvYnVmL2Nz" + 
+          "aGFycF9vcHRpb25zLnByb3RvIh4KEUltcG9ydE1lc3NhZ2VMaXRlEgkKAWQY" + 
+          "ASABKAUqTwoOSW1wb3J0RW51bUxpdGUSEwoPSU1QT1JUX0xJVEVfRk9PEAcS" + 
+          "EwoPSU1QT1JUX0xJVEVfQkFSEAgSEwoPSU1QT1JUX0xJVEVfQkFaEAlCWgoT" + 
+          "Y29tLmdvb2dsZS5wcm90b2J1ZkgDwj5ACiFHb29nbGUuUHJvdG9jb2xCdWZm" + 
+          "ZXJzLlRlc3RQcm90b3MSG1VuaXRUZXN0SW1wb3J0TGl0ZVByb3RvRmlsZQ==");
+      pbd::FileDescriptor.InternalDescriptorAssigner assigner = delegate(pbd::FileDescriptor root) {
+        descriptor = root;
+        internal__static_protobuf_unittest_import_ImportMessageLite__Descriptor = Descriptor.MessageTypes[0];
+        internal__static_protobuf_unittest_import_ImportMessageLite__FieldAccessorTable = 
+            new pb::FieldAccess.FieldAccessorTable<global::Google.ProtocolBuffers.TestProtos.ImportMessageLite, global::Google.ProtocolBuffers.TestProtos.ImportMessageLite.Builder>(internal__static_protobuf_unittest_import_ImportMessageLite__Descriptor,
+                new string[] { "D", });
+        pb::ExtensionRegistry registry = pb::ExtensionRegistry.CreateInstance();
+        RegisterAllExtensions(registry);
+        global::Google.ProtocolBuffers.DescriptorProtos.CSharpOptions.RegisterAllExtensions(registry);
+        return registry;
+      };
+      pbd::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
+          new pbd::FileDescriptor[] {
+          global::Google.ProtocolBuffers.DescriptorProtos.CSharpOptions.Descriptor, 
+          }, assigner);
+    }
+    #endregion
+    
+  }
+  #region Enums
+  public enum ImportEnumLite {
+    IMPORT_LITE_FOO = 7,
+    IMPORT_LITE_BAR = 8,
+    IMPORT_LITE_BAZ = 9,
+  }
+  
+  #endregion
+  
+  #region Messages
+  public sealed partial class ImportMessageLite : pb::GeneratedMessage<ImportMessageLite, ImportMessageLite.Builder> {
+    private static readonly ImportMessageLite defaultInstance = new Builder().BuildPartial();
+    public static ImportMessageLite DefaultInstance {
+      get { return defaultInstance; }
+    }
+    
+    public override ImportMessageLite DefaultInstanceForType {
+      get { return defaultInstance; }
+    }
+    
+    protected override ImportMessageLite ThisMessage {
+      get { return this; }
+    }
+    
+    public static pbd::MessageDescriptor Descriptor {
+      get { return global::Google.ProtocolBuffers.TestProtos.UnitTestImportLiteProtoFile.internal__static_protobuf_unittest_import_ImportMessageLite__Descriptor; }
+    }
+    
+    protected override pb::FieldAccess.FieldAccessorTable<ImportMessageLite, ImportMessageLite.Builder> InternalFieldAccessors {
+      get { return global::Google.ProtocolBuffers.TestProtos.UnitTestImportLiteProtoFile.internal__static_protobuf_unittest_import_ImportMessageLite__FieldAccessorTable; }
+    }
+    
+    public const int DFieldNumber = 1;
+    private bool hasD;
+    private int d_ = 0;
+    public bool HasD {
+      get { return hasD; }
+    }
+    public int D {
+      get { return d_; }
+    }
+    
+    public static ImportMessageLite ParseFrom(pb::ByteString data) {
+      return ((Builder) CreateBuilder().MergeFrom(data)).BuildParsed();
+    }
+    public static ImportMessageLite ParseFrom(pb::ByteString data, pb::ExtensionRegistry extensionRegistry) {
+      return ((Builder) CreateBuilder().MergeFrom(data, extensionRegistry)).BuildParsed();
+    }
+    public static ImportMessageLite ParseFrom(byte[] data) {
+      return ((Builder) CreateBuilder().MergeFrom(data)).BuildParsed();
+    }
+    public static ImportMessageLite ParseFrom(byte[] data, pb::ExtensionRegistry extensionRegistry) {
+      return ((Builder) CreateBuilder().MergeFrom(data, extensionRegistry)).BuildParsed();
+    }
+    public static ImportMessageLite ParseFrom(global::System.IO.Stream input) {
+      return ((Builder) CreateBuilder().MergeFrom(input)).BuildParsed();
+    }
+    public static ImportMessageLite ParseFrom(global::System.IO.Stream input, pb::ExtensionRegistry extensionRegistry) {
+      return ((Builder) CreateBuilder().MergeFrom(input, extensionRegistry)).BuildParsed();
+    }
+    public static ImportMessageLite ParseDelimitedFrom(global::System.IO.Stream input) {
+      return CreateBuilder().MergeDelimitedFrom(input).BuildParsed();
+    }
+    public static ImportMessageLite ParseDelimitedFrom(global::System.IO.Stream input, pb::ExtensionRegistry extensionRegistry) {
+      return CreateBuilder().MergeDelimitedFrom(input, extensionRegistry).BuildParsed();
+    }
+    public static ImportMessageLite ParseFrom(pb::CodedInputStream input) {
+      return ((Builder) CreateBuilder().MergeFrom(input)).BuildParsed();
+    }
+    public static ImportMessageLite ParseFrom(pb::CodedInputStream input, pb::ExtensionRegistry extensionRegistry) {
+      return ((Builder) CreateBuilder().MergeFrom(input, extensionRegistry)).BuildParsed();
+    }
+    public static Builder CreateBuilder() { return new Builder(); }
+    public override Builder ToBuilder() { return CreateBuilder(this); }
+    public override Builder CreateBuilderForType() { return new Builder(); }
+    public static Builder CreateBuilder(ImportMessageLite prototype) {
+      return (Builder) new Builder().MergeFrom(prototype);
+    }
+    
+    public sealed partial class Builder : pb::GeneratedBuilder<ImportMessageLite, Builder> {
+      protected override Builder ThisBuilder {
+        get { return this; }
+      }
+      public Builder() {}
+      
+      ImportMessageLite result = new ImportMessageLite();
+      
+      protected override ImportMessageLite MessageBeingBuilt {
+        get { return result; }
+      }
+      
+      public override Builder Clear() {
+        result = new ImportMessageLite();
+        return this;
+      }
+      
+      public override Builder Clone() {
+        return new Builder().MergeFrom(result);
+      }
+      
+      public override pbd::MessageDescriptor DescriptorForType {
+        get { return global::Google.ProtocolBuffers.TestProtos.ImportMessageLite.Descriptor; }
+      }
+      
+      public override ImportMessageLite DefaultInstanceForType {
+        get { return global::Google.ProtocolBuffers.TestProtos.ImportMessageLite.DefaultInstance; }
+      }
+      
+      public override ImportMessageLite BuildPartial() {
+        if (result == null) {
+          throw new global::System.InvalidOperationException("build() has already been called on this Builder");
+        }
+        ImportMessageLite returnMe = result;
+        result = null;
+        return returnMe;
+      }
+      
+      
+      public bool HasD {
+        get { return result.HasD; }
+      }
+      public int D {
+        get { return result.D; }
+        set { SetD(value); }
+      }
+      public Builder SetD(int value) {
+        result.hasD = true;
+        result.d_ = value;
+        return this;
+      }
+      public Builder ClearD() {
+        result.hasD = false;
+        result.d_ = 0;
+        return this;
+      }
+    }
+    static ImportMessageLite() {
+      object.ReferenceEquals(global::Google.ProtocolBuffers.TestProtos.UnitTestImportLiteProtoFile.Descriptor, null);
+    }
+  }
+  
+  #endregion
+  
+}