Merge branch 'stable-2.13'

* stable-2.13:
  Make SimpleDateFormat thread safe

Change-Id: I5c25e247cad9577159134fc790063801d423106a
tree: 385af5e9a5be65d25b073eb49aa2f9b5a323e510
  1. lib/
  2. src/
  3. .buckconfig
  4. .gitignore
  5. BUCK
  6. BUILD
  7. external_plugin_deps.bzl
  8. LICENSE