Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  Improve hook debug documentation
  Increase timeout and non-zero exit logs to error level

Change-Id: Ic7dc9bc15c602c17171480ed5f507440b341d2df
tree: ff50204172116843e88fe338c094eb1937500d3e
  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.