Merge art from dalvik-dev to master

Change-Id: I75ff1ade44c553e6b7b54ed49bf3f5eb24eab142
tree: 3b06baf3ec68ac439645a4fde9d0bca296b49cd6
  1. build/
  2. jdwpspy/
  3. src/
  4. test/
  5. tools/
  6. .gitignore
  7. Android.mk