Hide the little helper class that came over with the JPGEncoder inside the JPGEncoder file.

git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@585 ed5b42cb-e716-0410-a449-f6a68f950b19

src/as/com/threerings/flash/JPGEncoder.as

@@ -20,7 +20,7 @@ import flash.utils.*;
  * can be accessed via getJpeg.
  */		
 public class JPGEncoder
-{
+{    
 	// Static table initialization
 
 	private var ZigZag:Array = [
@@ -701,3 +701,12 @@ public class JPGEncoder
 	protected var _pixelGranularity :int;
 }
 }
+
+/**
+ * Helper class originally separate 
+ */
+class BitString
+{
+	public var len:int = 0;
+	public var val:int = 0;
+}