Reduce number of emails for staff

Staff currently get four simultaneous emails when added the AnthroCon
way. This prevents the extraneous emails from getting sent.
Change badge confirmation delay back to 7 days

This part of the email bug was fixed inside the group badge-claiming process itself, so the extra delay is no longer needed.
Merge pull request #819 from magfest/fix_emails

Reduce number of emails for staff