Update footer text in emails.
Updates text in the password reset email.
Fix missing app_name in referral email text. Issue #404.
Add flag notification template. Issue #413.
Add flag notification plaintext email content to template. Issue #413.
Add v2 welcome email template. Issue #414.
Update development_email_test command.
Merge branch 'dev-issue409' into dev-emailtest
Merge branch 'dev-153' into dev-emailtest
Merge branch 'dev-issue404' into dev-emailtest