Merge branch 'stable-3.0' into stable-3.1

* stable-3.0:
  Upgrade bazlets to latest stable-2.16 to build with 2.16.18 API
  Bump Bazel version to 3.1.0

Change-Id: Ic62a32c80078104312ab0b2522b8211aa8f996db

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 935e5dd..e111345 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "97eef86854b0fb68b9287831f3075b6f6218ff41",
+    commit = "fc1bfdf008c4b07e7cc4214fdacf25560276f9c4",
     #local_path = "/home/<user>/projects/bazlets",
 )