Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Upgrade bazlets to latest stable-2.15
  Upgrade bazlets to latest stable-2.14

Change-Id: I0a695a91d1e53e3f17f47d2e188c565f59389653
diff --git a/WORKSPACE b/WORKSPACE
index f405bfc..a389909 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "4df6379dfb49746619dcf4764825916406365774",
+    commit = "d100b6aad6b37e7db8fa141020c882dc97fb7723",
     #local_path = "/home/<user>/projects/bazlets",
 )