Up the stream parcel cache limit from 30 to 50 to help on pages with …

…large amounts of duplicate file widgets (This should be fixed properly in the future with FOXRD-880)

Copied from Perforce
 Change: 110794

src/main/java/net/foxopen/fox/download/ThreadDownloadManager.java

@@ -27,7 +27,7 @@
 public class ThreadDownloadManager
 implements DownloadManager {
 
-  private static final int PARCEL_CACHE_MAX_SIZE = 30;
+  private static final int PARCEL_CACHE_MAX_SIZE = 50;
   private static final Iterator<String> gUniqueIterator = XFUtil.getUniqueIterator();
 
   private final StatefulXThread mXThread;