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
  Bump Bazel version to 1.1.0

Change-Id: Iabfc1dd9e5144e1506601c1cf62fc94c8764b654
diff --git a/.bazelversion b/.bazelversion
index 3eefcb9..9084fa2 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1 @@
-1.0.0
+1.1.0