Migrates hruid upgrade script to version 0.9.18.

Signed-off-by: Vincent Zanotti <vincent.zanotti@polytechnique.org>

diff --git a/upgrade/hruid/03_hruid.sql b/upgrade/0.9.18/03_hruid.sql
similarity index 100%
rename from upgrade/hruid/03_hruid.sql
rename to upgrade/0.9.18/03_hruid.sql

diff --git a/upgrade/hruid/connect.db.inc.php b/upgrade/0.9.18/connect.db.inc.php
similarity index 100%
rename from upgrade/hruid/connect.db.inc.php
rename to upgrade/0.9.18/connect.db.inc.php

diff --git a/upgrade/hruid/hruid.update.php b/upgrade/0.9.18/hruid.update.php
similarity index 100%
rename from upgrade/hruid/hruid.update.php
rename to upgrade/0.9.18/hruid.update.php

diff --git a/upgrade/hruid/update.sh b/upgrade/0.9.18/update.sh
similarity index 100%
rename from upgrade/hruid/update.sh
rename to upgrade/0.9.18/update.sh