Merge change 530 into donut

* changes:
  Remove obsolete activitycreator from windows SDK makefile.
tree: 3a8df6f62d2719d86dcd5a29d9307ab0628beba4
  1. core/
  2. libs/
  3. target/
  4. tools/
  5. buildspec.mk.default
  6. cleanspec.mk
  7. envsetup.sh