Merge branch 'stable-2.14'

* stable-2.14:
  Upgrade bazlets and use released 2.14.1 API
  Upgrade JGit to 4.7.1.201706071930-r
  Implement Git LFS 2.0 locking
  Validate user permission to Git LFS lock operation
  Unify exceptions handling and error reporting with LfsApiServlet
  Create REST stub for Git LFS 2.0 Lock API

Change-Id: I0d2533e6468647767fa7cebbd53624efa013c77e
tree: 1abd3480a26e36e891d1c68df09196933b48670f
  1. src/
  2. tools/
  3. .gitignore
  4. bazlets.bzl
  5. BUILD
  6. external_plugin_deps.bzl
  7. WORKSPACE