Use the new path for functions.php
Use the new path for functions.php

`/lib/functions.php` was moved to `/functions.php` for quite a while.
This PR uses the new path for `/api/search.php` to include it.

torkelsson/ganglia-web,luckypoem/ganglia-web,torkelsson/ganglia-web,ganglia/ganglia-web,ganglia/ganglia-web,ganglia/ganglia-web,torkelsson/ganglia-web,luckypoem/ganglia-web,torkelsson/ganglia-web,ganglia/ganglia-web,luckypoem/ganglia-web,ganglia/ganglia-web,luckypoem/ganglia-web,luckypoem/ganglia-web,torkelsson/ganglia-web