Developer credits
Git commits in Moodle 2.1.7 by Eric Merrill
commit bfe1d304442450165cae6baf579f686e48c703e9 Author: Eric Merrill <merrill@oakland.edu> Date: Thu, 07 Jun 2012 00:16:40 +0800 Tag: v2.1.7 MDL-32985 cron: Fixing related problem with setting of lastnotifyfailure
commit 33641c38738a395f93382967f0bb3e793b9c0c7c Author: Eric Merrill <merrill@oakland.edu> Date: Mon, 14 May 2012 23:11:27 +0800 Tag: v2.1.7 MDL-32985 cron: don't execute notify_login_failures unnecessarily