Merge branch 'stable-3.0' into stable-3.1

* stable-3.0:
  Fix and clarify documentation of ref-update and commit-received hooks
  Correct documentation of ref-update hook regarding output

Change-Id: Ifa4fefac518fc170f3248ebfcbe5e1a338e46c0f
tree: f16543c08bfbb7058c2a7ac9c0cfc3dc80e8674c
  1. src/
  2. .gitignore
  3. BUILD

Hooks plugin

Gerrit does not support the standard server-side git hooks in the repositories it manages.

This plugin adds support for custom hooks that can be run instead. Refer to the configuration documentation and list of supported hooks for details.