Merge branch 'stable-2.15'

* stable-2.15:
  [project.py] Add bazel --batch option
  [project.py] Fix typo
  Set Gerrit API version to 2.15-rc2

Change-Id: I6d83dfea5002f8837198a0b6086a1dc99a13df2e
diff --git a/gerrit_api_maven_local.bzl b/gerrit_api_maven_local.bzl
index b1fe421..c294e0a 100644
--- a/gerrit_api_maven_local.bzl
+++ b/gerrit_api_maven_local.bzl
@@ -5,7 +5,7 @@
 gerrit_api is rule for fetching Gerrit plugin API using Bazel.
 """
 
-VER = "2.15-SNAPSHOT"
+VER = "2.16-SNAPSHOT"
 
 def gerrit_api_maven_local():
   bouncycastle_repos()