Merge branch 'stable-3.0' into stable-3.1

* stable-3.0:
  Upgrade bazlets to latest stable-3.0 to build with 3.0.12 API
  Upgrade bazlets to latest stable-2.16 to build with 2.16.22 API

Change-Id: I83ec981770c121639fc680decffd93a0d7ca46a2
diff --git a/WORKSPACE b/WORKSPACE
index 7b1cf8f..a72e0df 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "6d2b8f41ed34dad925b767399d1e4be378abb029",
+    commit = "b6cb89690a5e06261932eb30c95fd8db34a7943a",
     #local_path = "/home/<user>/projects/bazlets",
 )