Merge branch 'stable-2.16' into stable-3.0

* stable-2.16:
  Upgrade bazlets to latest stable-2.15
  Upgrade bazlets to latest stable-2.14
  Fix typo in CachePatte{r}nMatcherTest name
  Do not propagate ldap_groups cache evictions

Change-Id: If7016c4db61d2996bca14383e2f0c32d60b11a16