Merge branch 'stable-2.16' into stable-3.0

* stable-2.16:
  Upgrade bazlets to latest stable-2.16
  Upgrade bazlets to latest stable-2.15
  Bump required bazel version to 1.0.0rc2
  Upgrade bazlets to latest stable-2.14

Change-Id: Ide62321be8b0687041ade023a65cc7bc96901eef

.bazelversion

diff --git a/.bazelversion b/.bazelversion
index 09d1d01..8862dba 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1,2 +1 @@
-0.29.0
-
+1.0.0rc2