Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Upgrade bazlets to latest stable-2.15 to build with 2.15.12 API
  Upgrade bazlets to latest stable-2.14 to build with 2.14.19 API

Change-Id: I9cfe4ebe6d7ced24206ac2dbd0866d2fadef65b3
diff --git a/WORKSPACE b/WORKSPACE
index ee8f3ef..86981b0 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "f4fcc606a6afa8ce27a013bcf62e495a5ec2505c",
+    commit = "86562a4c8c2e885aac89eafab34a90571be2ef09",
     #local_path = "/home/<user>/projects/bazlets",
 )