Upgrade bazlets to latest master to build with 3.1.0-rc1 API
Upgrade bazlets to latest master to build with 3.1.0-rc1 API

Change-Id: I5ecd3aeac019909947ec917ca6126a0e5a4199c1

GerritCodeReview/plugins_javamelody,GerritCodeReview/plugins_javamelody,GerritCodeReview/plugins_javamelody