Use core Gerrit API instead of ChangeHooks

In preparation for upgrade to 2.14 support.  ChangeHooks were seperated
from core Gerrit into its own plugin since 2.13.

Change-Id: I45fbb47c558a4e4c0c646ed9d6da8b5f6ab96017
5 files changed
tree: 779d62fed61c7ec5e86085769325cc3a6a2ec5e9
  1. src/
  2. .gitignore
  3. LICENSE
  4. pom.xml