Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Bump bazel version to 1.0.0
  Upgrade bazlets to latest stable-2.15 to build with 2.15.17 API

Change-Id: I3014762da0f6c49fc6cf9dcea688201a71a25436
diff --git a/WORKSPACE b/WORKSPACE
index ae7d19b..704ecc9 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "ae1cd231b0262b2738e6c0593eb3c504209ad4f5",
+    commit = "ec989bb514e39447764057c60d3f9959bff8e153",
     #local_path = "/home/<user>/projects/bazlets",
 )