Brought in groups.json from original branch
Merge branch 'develop' of github.com:HabitRPG/habitrpg-shared into add-flag-to-chat
Merge pull request #407 from HabitRPG/add-flag-to-chat

Add flag to chat
Fixed cron dayStart option.
Wrote test cases to verify fix.
Fixed test cases that were incorrect.
chore(grunt): compile