-Changed BsonReader/BsonWriter to close the underlying stream by default when closed

-Added CloseInput/CloseOutput to JsonReader/JsonWriter to control whether the underlying stream is closed. Default to true

Src/Newtonsoft.Json.Tests/Bson/BsonReaderTests.cs

@@ -40,6 +40,24 @@ namespace Newtonsoft.Json.Tests.Bson
   {
     private const char Euro = '\u20ac';
 
+    [Test]
+    public void CloseInput()
+    {
+      MemoryStream ms = new MemoryStream();
+      BsonReader reader = new BsonReader(ms);
+
+      Assert.IsTrue(ms.CanRead);
+      reader.Close();
+      Assert.IsFalse(ms.CanRead);
+
+      ms = new MemoryStream();
+      reader = new BsonReader(ms) { CloseInput = false };
+
+      Assert.IsTrue(ms.CanRead);
+      reader.Close();
+      Assert.IsTrue(ms.CanRead);
+    }
+
     [Test]
     public void ReadSingleObject()
     {

Src/Newtonsoft.Json.Tests/Bson/BsonWriterTests.cs

@@ -38,6 +38,24 @@ namespace Newtonsoft.Json.Tests.Bson
 {
   public class BsonWriterTests : TestFixtureBase
   {
+    [Test]
+    public void CloseOutput()
+    {
+      MemoryStream ms = new MemoryStream();
+      BsonWriter writer = new BsonWriter(ms);
+
+      Assert.IsTrue(ms.CanRead);
+      writer.Close();
+      Assert.IsFalse(ms.CanRead);
+
+      ms = new MemoryStream();
+      writer = new BsonWriter(ms) { CloseOutput = false };
+
+      Assert.IsTrue(ms.CanRead);
+      writer.Close();
+      Assert.IsTrue(ms.CanRead);
+    }
+
     [Test]
     public void WriteSingleObject()
     {

Src/Newtonsoft.Json.Tests/JsonTextReaderTest.cs

@@ -35,6 +35,24 @@ namespace Newtonsoft.Json.Tests
 {
   public class JsonTextReaderTest : TestFixtureBase
   {
+    [Test]
+    public void CloseInput()
+    {
+      MemoryStream ms = new MemoryStream();
+      JsonTextReader reader = new JsonTextReader(new StreamReader(ms));
+
+      Assert.IsTrue(ms.CanRead);
+      reader.Close();
+      Assert.IsFalse(ms.CanRead);
+
+      ms = new MemoryStream();
+      reader = new JsonTextReader(new StreamReader(ms)) { CloseInput = false };
+
+      Assert.IsTrue(ms.CanRead);
+      reader.Close();
+      Assert.IsTrue(ms.CanRead);
+    }
+    
     [Test]
     public void YahooFinance()
     {

Src/Newtonsoft.Json.Tests/JsonTextWriterTest.cs

@@ -34,6 +34,24 @@ namespace Newtonsoft.Json.Tests
 {
   public class JsonTextWriterTest : TestFixtureBase
   {
+    [Test]
+    public void CloseOutput()
+    {
+      MemoryStream ms = new MemoryStream();
+      JsonTextWriter writer = new JsonTextWriter(new StreamWriter(ms));
+
+      Assert.IsTrue(ms.CanRead);
+      writer.Close();
+      Assert.IsFalse(ms.CanRead);
+
+      ms = new MemoryStream();
+      writer = new JsonTextWriter(new StreamWriter(ms)) { CloseOutput = false };
+
+      Assert.IsTrue(ms.CanRead);
+      writer.Close();
+      Assert.IsTrue(ms.CanRead);
+    }
+    
     [Test]
     public void ValueFormatting()
     {

Src/Newtonsoft.Json/Bson/BsonBinaryWriter.cs

@@ -30,6 +30,11 @@ namespace Newtonsoft.Json.Bson
       _writer.Flush();
     }
 
+    public void Close()
+    {
+      _writer.Close();
+    }
+
     public void WriteToken(BsonToken t)
     {
       CalculateSize(t);

Src/Newtonsoft.Json/Bson/BsonReader.cs

@@ -242,6 +242,14 @@ namespace Newtonsoft.Json.Bson
       }
     }
 
+    public override void Close()
+    {
+      base.Close();
+
+      if (CloseInput && _reader != null)
+        _reader.Close();
+    }
+
     private bool ReadCodeWScope()
     {
       switch (_bsonReaderState)

Src/Newtonsoft.Json/Bson/BsonWriter.cs

@@ -156,6 +156,14 @@ namespace Newtonsoft.Json.Bson
       _propertyName = name;
     }
 
+    public override void Close()
+    {
+      base.Close();
+
+      if (CloseOutput && _writer != null)
+        _writer.Close();
+    }
+
     private void AddParent(BsonToken container)
     {
       AddToken(container);

Src/Newtonsoft.Json/JsonReader.cs

@@ -117,6 +117,16 @@ namespace Newtonsoft.Json
 
     private readonly List<JTokenType> _stack;
 
+    /// <summary>
+    /// Gets or sets a value indicating whether the underlying stream or
+    /// <see cref="TextReader"/> should be closed when the reader is closed.
+    /// </summary>
+    /// <value>
+    /// true to close the underlying stream or <see cref="TextReader"/> when
+    /// the reader is closed; otherwise false. The default is true.
+    /// </value>
+    public bool CloseInput { get; set; }
+
     /// <summary>
     /// Gets the quotation mark character used to enclose the value of a string.
     /// </summary>
@@ -173,6 +183,9 @@ namespace Newtonsoft.Json
     {
       _currentState = State.Start;
       _stack = new List<JTokenType>();
+
+      CloseInput = true;
+      
       Push(JTokenType.None);
     }
 

Src/Newtonsoft.Json/JsonTextReader.cs

@@ -991,7 +991,7 @@ namespace Newtonsoft.Json
     {
       base.Close();
 
-      if (_reader != null)
+      if (CloseInput && _reader != null)
         _reader.Close();
 
       if (_buffer != null)

Src/Newtonsoft.Json/JsonTextWriter.cs

@@ -134,7 +134,8 @@ namespace Newtonsoft.Json
     {
       base.Close();
 
-      _writer.Close();
+      if (CloseOutput && _writer != null)
+        _writer.Close();
     }
 
     /// <summary>

Src/Newtonsoft.Json/JsonWriter.cs

@@ -126,6 +126,16 @@ namespace Newtonsoft.Json
     private State _currentState;
     private Formatting _formatting;
 
+    /// <summary>
+    /// Gets or sets a value indicating whether the underlying stream or
+    /// <see cref="TextReader"/> should be closed when the writer is closed.
+    /// </summary>
+    /// <value>
+    /// true to close the underlying stream or <see cref="TextReader"/> when
+    /// the writer is closed; otherwise false. The default is true.
+    /// </value>
+    public bool CloseOutput { get; set; }
+
     /// <summary>
     /// Gets the top.
     /// </summary>
@@ -179,12 +189,14 @@ namespace Newtonsoft.Json
     /// <summary>
     /// Creates an instance of the <c>JsonWriter</c> class. 
     /// </summary>
-    public JsonWriter()
+    protected JsonWriter()
     {
       _stack = new List<JTokenType>(8);
       _stack.Add(JTokenType.None);
       _currentState = State.Start;
       _formatting = Formatting.None;
+
+      CloseOutput = true;
     }
 
     private void Push(JTokenType value)