Merge branch 'stable-2.16'

* stable-2.16:
  Mark greenmail as testonly
  Bazel: Fix testonly values in BUILD and .bzl files
  ListBranchesIT: Also assert on the expected ref of refs/meta/config
  Consistently define default serialVersionUID
  Scripts: Use bash in shebang
  GroupsUpdate: Evict group caches on group creation

Change-Id: Ide87f2555d458c93c351d48693af520a3a80b656

javatests/com/google/gerrit/util/http/testutil/BUILD

@@ -1,6 +1,6 @@
 java_library(
     name = "testutil",
-    testonly = 1,
+    testonly = True,
     srcs = glob(["**/*.java"]),
     visibility = ["//visibility:public"],
     deps = [