[Closed #268] Hided abstract title from the scedule details when there's no value
[Closed #268] Hided abstract title from the scedule details when there's no value

njl/pycon,Diwahars/pycon,PyCon/pycon,osmfj/sotmjp-website,osmfj/sotmjp-website,smellman/sotmjp-website,Diwahars/pycon,pyconjp/pyconjp-website,njl/pycon,pyconjp/pyconjp-website,smellman/sotmjp-website,smellman/sotmjp-website,pyconjp/pyconjp-website,osmfj/sotmjp-website,osmfj/sotmjp-website,PyCon/pycon,pyconjp/pyconjp-website,Diwahars/pycon,Diwahars/pycon,PyCon/pycon,smellman/sotmjp-website,njl/pycon,PyCon/pycon,njl/pycon