v2.7.10

1.[Internal code changes]
2.Fixed 500 error in challenge plugin when invalid job_requirements is provided
3.Added config.event_upcoming_forwarding for forwarding upcoming events
4.Added detailed reason of blocking dlog
5.Included basic user info in application discord embed when the full message is too long
6.Added seconds_ahead to config.event_upcoming_forwarding (3600 by default, maximum 86400 * 7)
7.Added config.challenge_completed_forwarding