Added trivial_rebase script.
diff --git a/setup.py b/setup.py
index 2a87690..f5f709b 100644
--- a/setup.py
+++ b/setup.py
@@ -61,6 +61,7 @@
             'notify-impact=gerritx.cmd.notify_impact:main',
             'process-cache=gerritx.cmd.process_cache:main',
             'run-mirror=gerritx.cmd.run_mirror:main',
+            'trivial-rebase=gerritx.cmd.trivial_rebase:main',
             'update-blueprint=gerritx.cmd.update_blueprint:main',
             'update-bug=gerritx.cmd.update_bug:main',
         ],