DS-445 Adds signup_data_form.school_not_affiliated_label column
DS-447 Adds school_not_affiliated_confirm_msg field
DS-447 Displays confirm_msg in user_signup_data_form
Merge pull request #3124 from aaronschachter/DS-445-variable

School Not Affiliated variable
UK SSO: Implement administration form.
Code review fix per #3125.
Merge pull request #3125 from sergii-tkachenko/DS-381_uk-administration-form

UK SSO: Implement administration form.