Andy - Auto delete users 1.0.0

Auto deletes users based on settings in options page.
Questions and answers:

Q: How often does the cron entry run?
A: It runs once a day at 12:00 AM UTC time.

Q: Are there any limits?
A: Yes there is a 100 user limit per function.

Q: Can I run the cron entry manually?
A: Yes.

Q: What other conditions need to apply before a user deleted?
A:

user_id > 1
secondary_group_ids = ''
message_count = 0
user_state = valid
is_moderator = 0
is_admin = 0
is_staff = 0