Add example plugin demonstrating MergeValidationListener

The plugin rejects all merges in gerrit if the submitter is not
an administrator.

Change-Id: I0d9358fafe24e8c0223200f971838f73d861ae6f
2 files changed
tree: ae1cee5ee95b72aaadad91aebb142ea58ffb212a
  1. lib/
  2. src/
  3. .buckconfig
  4. .gitignore
  5. BUCK
  6. LICENSE
  7. pom.xml