Fix user registration regression

Regression since a302a7d7489ec,
which made the Matrix Client API only available on
the http port (8008) and not over the federation port (8448).

CHANGELOG.md

@@ -20,10 +20,10 @@ which drops the initial page load's size from 5.31MB to 1.86MB.
 
 The following services are not necessary, so they have been disabled:
 - on the federation port (8448): the `client` service
-- on the http port (80): the old Angular `webclient` and the `federation` service
+- on the http port (8008, exposed over 443): the old Angular `webclient` and the `federation` service
 
 Federation runs only on the federation port (8448) now.
-The Client APIs run only on the http port (80) now.
+The Client APIs run only on the http port (8008) now.
 
 
 # 2018-08-15

roles/matrix-server/templates/usr-local-bin/matrix-synapse-register-user.j2

@@ -10,8 +10,8 @@ password=$2
 admin=$3
 
 if [ "$admin" -eq "1" ]; then
-        docker exec matrix-synapse register_new_matrix_user -a -u $user -p $password -c /data/homeserver.yaml https://localhost:8448
+        docker exec matrix-synapse register_new_matrix_user -a -u $user -p $password -c /data/homeserver.yaml http://localhost:8008
 else
         # If `-a` is not passed, we need to answer to an "admin: yes/no" question
-        echo 'no' | docker exec -i matrix-synapse register_new_matrix_user -u $user -p $password $extraFlags -c /data/homeserver.yaml https://localhost:8448
+        echo 'no' | docker exec -i matrix-synapse register_new_matrix_user -u $user -p $password $extraFlags -c /data/homeserver.yaml http://localhost:8008
 fi