Merge change 5553 into donut

* changes:
  Change cts makefile to bundle junit.jar.
tree: 89f3a8d9416ad08617898ef7bc769a4655f8e2fa
  1. core/
  2. libs/
  3. target/
  4. tools/
  5. buildspec.mk.default
  6. cleanspec.mk
  7. envsetup.sh