testing: Use venv for strongTNC

Also updated to a newer version to fix dependency issues.

testing/hosts/default/usr/local/bin/init_tnc

@@ -4,9 +4,11 @@ cd /var/www/tnc
 
 if [ -f django.db ]
 then
-	exit 0 
+	exit 0
 fi
 
+. /usr/local/venvs/tnc/bin/activate
+
 ./manage.py migrate --database meta
 ./manage.py setpassword strongSwan strongSwan
 ./manage.py collectstatic --noinput