Activate correct recipients for refereeing auto-reminders

templates/email/eic/referee_unresponsive.json

 {
     "subject": "SciPost: unresponsive referee",
-    "to_address_bup": "submission.editor_in_charge.user.email",
-    "bcc_to_bup": "admin@scipost.org",
-    "to_address": "J.S.Caux@uva.nl",
-    "bcc_to": "J.S.Caux@uva.nl",
+    "to_address": "submission.editor_in_charge.user.email",
+    "bcc_to": "edadmin@scipost.org",
     "from_address_name": "SciPost Refereeing",
     "from_address": "refereeing@scipost.org",
     "context_object": "invitation"

templates/email/referees/invite_contributor_to_referee_reminder1.json

 {
     "subject": "SciPost: refereeing request reminder",
-    "to_address_bup": "referee.user.email",
-    "bcc_to_bup": "submission.editor_in_charge.user.email,edadmin@scipost.org",
-    "to_address": "J.S.Caux@uva.nl",
-    "bcc_to": "J.S.Caux@uva.nl",
+    "to_address": "referee.user.email",
+    "bcc_to": "submission.editor_in_charge.user.email,edadmin@scipost.org",
     "from_address_name": "SciPost Refereeing",
     "from_address": "refereeing@scipost.org",
     "context_object": "invitation"

templates/email/referees/invite_contributor_to_referee_reminder2.json

 {
     "subject": "SciPost: refereeing request reminder",
-    "to_address_bup": "referee.user.email",
-    "bcc_to_bup": "submission.editor_in_charge.user.email,edadmin@scipost.org",
-    "to_address": "J.S.Caux@uva.nl",
-    "bcc_to": "J.S.Caux@uva.nl",
+    "to_address": "referee.user.email",
+    "bcc_to": "submission.editor_in_charge.user.email,edadmin@scipost.org",
     "from_address_name": "SciPost Refereeing",
     "from_address": "refereeing@scipost.org",
     "context_object": "invitation"

templates/email/referees/invite_unregistered_to_referee_reminder1.json

 {
     "subject": "SciPost: refereeing and registration invitation reminder",
-    "to_address_bup": "email_address",
-    "bcc_to_bup": "invited_by.email,edadmin@scipost.org",
-    "to_address": "J.S.Caux@uva.nl",
-    "bcc_to": "J.S.Caux@uva.nl",
+    "to_address": "email_address",
+    "bcc_to": "invited_by.email,edadmin@scipost.org",
     "from_address_name": "SciPost Refereeing",
     "from_address": "refereeing@scipost.org",
     "context_object": "invitation"

templates/email/referees/invite_unregistered_to_referee_reminder2.json

 {
     "subject": "SciPost: refereeing and registration invitation reminder",
-    "to_address_bup": "email_address",
-    "bcc_to_bup": "invited_by.email,edadmin@scipost.org",
-    "to_address": "J.S.Caux@uva.nl",
-    "bcc_to": "admin@scipost.org",
+    "to_address": "email_address",
+    "bcc_to": "invited_by.email,edadmin@scipost.org",
     "from_address_name": "SciPost Refereeing",
     "from_address": "refereeing@scipost.org",
     "context_object": "invitation"