Fix cloneNode to work when no namespace is set.

Change-Id: I0bcbc79832f06613c82f93c0f8805a43a1cf2094
http://code.google.com/p/android/issues/detail?id=2735
tree: ebd917e897c020792b4ed229a2754f5d542f1707
  1. src/
  2. Android.mk
  3. MODULE_LICENSE_BSD_LIKE
  4. VERSION