Custom iCal and gCal links

<!-- Base example of custom iCal and Google Cal links -->
<a class="tribe-events-ical" href="<?php echo apply_filters('tribe_get_ical_link', tribe_get_single_ical_link()) ?>"> iCal </a>
<a class="tribe-events-gcal" href="<?php echo apply_filters('tribe_get_gcal_link', tribe_get_gcal_link()) ?>"> Google Cal </a>