Developer credits
Git commits in Moodle 3.0.6 by Nick Phillips
commit 06c9734dc89ce360100a4fbf0c9b57ba10d4012e Author: Nick Phillips <nick.phillips@otago.ac.nz> Date: Wed, 20 Jul 2016 12:08:54 +0800 Tag: v3.0.6 MDL-55274 mod_chat: regain beep and / command in mod_chat.