No email debug

src/freedombone-app-mediagoblin

     su -c "cd $MEDIAGOBLIN_BASE_DIR/mediagoblin/ && bin/gmg adduser --username $MY_USERNAME --password $MY_USERNAME $MEDIAGOBLIN_ADMIN_PASSWORD" - mediagoblin
     su -c "cd $MEDIAGOBLIN_BASE_DIR/mediagoblin/ && bin/gmg makeadmin $MY_USERNAME" - mediagoblin
 
+    sed -i 's|email_debug_mode.*|email_debug_mode = false|g' $MEDIAGOBLIN_BASE_DIR/mediagoblin/mediagoblin.ini
+    sed -i "s|email_sender_address.*|email_sender_address = \"noreply@${DEFAULT_DOMAIN_NAME}\"|g" $MEDIAGOBLIN_BASE_DIR/mediagoblin/mediagoblin.ini
+
     systemctl enable mediagoblin
     systemctl daemon-reload
     systemctl start mediagoblin