MDL-1626 mod_forum: Events
MDL-1625 mod_forum: Remove discussion settings on forum removal
MDL-1625 mod_forum: Clear discussion subscriptions on forum reset userdata
MDL-1625 mod_forum: Clear discussion subscriptions on (un)subscribe
MDL-1626 mod_forum: Only drop discussion preferences when the subscription change was initiated by the user
MDL-1626 mod_forum: Make cron handle discussion subscriptions
MDL-1626 mod_forum: Initial notification tests
MDL-1626 mod_forum: Add functions to unsubscribe a user from a discussion
MDL-1626 mod_forum: Basic tests for per-discussion subscription
squash! MDL-1626 mod_forum: Add functions to unsubscribe a user from a discussion
MDL-1626 mod_forum: Change to per-discussion subscription option in new post form