Merge branch 'stable-2.15'

* stable-2.15:
  Support an extra command for ssh command

Change-Id: If2f68f9c83dae2faf038718d9ec94ba31587e330
tree: 631e7b96d7a03d624b6c46027166dac21a5c77dc
  1. .gitignore
  2. BUILD
  3. LICENSE
  4. src/