Merge branch 'stable-3.1'

* stable-3.1:
  Upgrade bazlets to latest stable-2.16 to build with 2.16.18 API
  Bump Bazel version to 3.1.0

Change-Id: Iafae119b86f08811aad0dd66401f9e44ece3142d

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 02a9ce7..698bdfa 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "fc1bfdf008c4b07e7cc4214fdacf25560276f9c4",
+    commit = "5c26af9e0374ede4cd67939be972adf6c4cda791",
     #local_path = "/home/<user>/projects/bazlets",
 )
 

src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatIT.java

diff --git a/src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatIT.java b/src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatIT.java
index 98d87ad..516db73 100644
--- a/src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatIT.java
+++ b/src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatIT.java
@@ -16,7 +16,7 @@
 
 import static com.google.common.truth.Truth.assertWithMessage;
 
-import com.google.gerrit.acceptance.GlobalPluginConfig;
+import com.google.gerrit.acceptance.config.GlobalPluginConfig;
 import com.google.gerrit.acceptance.LightweightPluginDaemonTest;
 import com.google.gerrit.acceptance.NoHttpd;
 import com.google.gerrit.acceptance.TestPlugin;