Upgrade emulator to emu-master-dev build 3696197 am: c383a21820 am: 2020dc0d46
am: eb3ee3d12d

Change-Id: I361eed248c6f62d2728b819a704830ec4a743837
tree: 283a3904940bb4a5f308eb4bca5ba5932e6a6a6c
  1. darwin-x86_64/
  2. linux-x86_64/
  3. .gitignore
  4. NOTICE
  5. README
  6. update_emulator.sh