implement hasUser(localpart), RegisterState add verify{_admin}.php

- fixes

config.sample.php

@@ -1,6 +1,9 @@
 <?php
 $homeserver = "example.com";
 $access_token = "To be used for sending the registration notification";
-$register_room = '"$registerRoomID:example.com';
+$register_room = '$registerRoomID:example.com';
 $registration_shared_secret = "To be used for actually register the user";
-?>
+
+$webroot="https://myregisterdomain.net/";
+$howToURL = "https://my-url-for-storing-howTos.net";
+?>