migration to add email flag
Merge branch 'hours_email_flag' of github.com:feministy/gdi-tams into hours_email_flag
migration
validation for email_sent flag
rake task for updating data
symbol for update_attribute
custom badges
remove email_sent validation because it has a default
missing_emails? checks for TAs who have not been emailed
missing_email_for?(course) method on TA
options to re-send unconfirmed TA emails
email helpers extracted since they are used in a few places
missing_confirmation route
Merge pull request #100 from feministy/hours_email_flag

email flag set per TA sign up; can send missing email confirmations