Rename qabot variable to bot.

qabot is somewhat criteo-specific. Name it bot instead.
diff --git a/src/main/java/com/criteo/gerrit/plugins/automerge/AtomicityHelper.java b/src/main/java/com/criteo/gerrit/plugins/automerge/AtomicityHelper.java
index c038afb..f48e000 100644
--- a/src/main/java/com/criteo/gerrit/plugins/automerge/AtomicityHelper.java
+++ b/src/main/java/com/criteo/gerrit/plugins/automerge/AtomicityHelper.java
@@ -75,8 +75,8 @@
    */
   public boolean hasDependentReview(final int number) throws IOException, NoSuchChangeException, OrmException {
     final Set<Account.Id> ids = byEmailCache.get(config.getBotEmail());
-    final IdentifiedUser qabot = factory.create(ids.iterator().next());
-    final ChangeControl ctl = changeFactory.controlFor(new Change.Id(number), qabot);
+    final IdentifiedUser bot = factory.create(ids.iterator().next());
+    final ChangeControl ctl = changeFactory.controlFor(new Change.Id(number), bot);
     final ChangeData changeData = changeDataFactory.create(db.get(), new Change.Id(number));
 
     final RevisionResource r = new RevisionResource(collection.parse(ctl), changeData.currentPatchSet());
diff --git a/src/main/java/com/criteo/gerrit/plugins/automerge/ReviewUpdater.java b/src/main/java/com/criteo/gerrit/plugins/automerge/ReviewUpdater.java
index f04fc26..dc06f9f 100644
--- a/src/main/java/com/criteo/gerrit/plugins/automerge/ReviewUpdater.java
+++ b/src/main/java/com/criteo/gerrit/plugins/automerge/ReviewUpdater.java
@@ -68,8 +68,8 @@
     message.message = comment;
     message.label("Code-Review", -2);
     final Set<Account.Id> ids = byEmailCache.get(config.getBotEmail());
-    final IdentifiedUser qabot = factory.create(ids.iterator().next());
-    final ChangeControl ctl = changeFactory.controlFor(new Change.Id(number), qabot);
+    final IdentifiedUser bot = factory.create(ids.iterator().next());
+    final ChangeControl ctl = changeFactory.controlFor(new Change.Id(number), bot);
     final ChangeData changeData = changeDataFactory.create(db.get(), new Change.Id(number));
 
     final RevisionResource r = new RevisionResource(collection.parse(ctl), changeData.currentPatchSet());