Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  Add bin/ to .gitignore
  Remove unused imports

Change-Id: I92514e407b97ebe87bbe8f3d974ac46090abe356
tree: f1ff09afbee1e892a256332f522e64ff724ad7f3
  1. .gitignore
  2. .settings/
  3. BUILD
  4. LICENSE
  5. src/