Permissions on etherpad settings

src/freedombone-app-etherpad

@@ -175,6 +175,7 @@ function create_etherpad_settings {
     echo '  },' >> $settings_file
     echo '  "loglevel": "INFO"' >> $settings_file
     echo '}' >> $settings_file
+    chmod 600 $settings_file
 }
 
 function remove_user_etherpad {