Rename form objects to remove the term ‘whitelist’

See c31264d4c for rationale. To avoid confusion the codebase should use
the same terminology as the UI.

app/main/forms.py

@@ -1241,26 +1241,26 @@ class PDFUploadForm(StripWhitespaceForm):
     )
 
 
-class EmailFieldInWhitelist(EmailField, StripWhitespaceStringField):
+class EmailFieldInGuestList(EmailField, StripWhitespaceStringField):
     pass
 
 
-class InternationalPhoneNumberInWhitelist(InternationalPhoneNumber, StripWhitespaceStringField):
+class InternationalPhoneNumberInGuestList(InternationalPhoneNumber, StripWhitespaceStringField):
     pass
 
 
-class Whitelist(StripWhitespaceForm):
+class GuestList(StripWhitespaceForm):
 
     def populate(self, email_addresses, phone_numbers):
-        for form_field, existing_whitelist in (
+        for form_field, existing_guest_list in (
             (self.email_addresses, email_addresses),
             (self.phone_numbers, phone_numbers)
         ):
-            for index, value in enumerate(existing_whitelist):
+            for index, value in enumerate(existing_guest_list):
                 form_field[index].data = value
 
     email_addresses = FieldList(
-        EmailFieldInWhitelist(
+        EmailFieldInGuestList(
             '',
             validators=[
                 Optional(),
@@ -1274,7 +1274,7 @@ class Whitelist(StripWhitespaceForm):
     )
 
     phone_numbers = FieldList(
-        InternationalPhoneNumberInWhitelist(
+        InternationalPhoneNumberInGuestList(
             '',
             validators=[
                 Optional()

app/main/views/api_keys.py

@@ -18,9 +18,9 @@ from app import (
 from app.main import main
 from app.main.forms import (
     CreateKeyForm,
+    GuestList,
     ServiceDeliveryStatusCallbackForm,
     ServiceReceiveMessagesCallbackForm,
-    Whitelist,
 )
 from app.notify_client.api_key_api_client import (
     KEY_TYPE_NORMAL,
@@ -55,7 +55,7 @@ def api_documentation(service_id):
 @main.route("/services/<uuid:service_id>/api/whitelist", methods=['GET', 'POST'])
 @user_has_permissions('manage_api_keys')
 def whitelist(service_id):
-    form = Whitelist()
+    form = GuestList()
     if form.validate_on_submit():
         service_api_client.update_whitelist(service_id, {
             'email_addresses': list(filter(None, form.email_addresses.data)),