Bump sphinx and networkx (#888)
Bump sphinx and networkx (#888)

Summary: Pull Request resolved: https://github.com/mapillary/OpenSfM/pull/888

Reviewed By: YanNoun

Differential Revision: D35459883

Pulled By: mlopezantequera

fbshipit-source-id: 0e61c7f3f851428707462d1df9a3f68e3c14db12

mapillary/OpenSfM,mapillary/OpenSfM,mapillary/OpenSfM,mapillary/OpenSfM,mapillary/OpenSfM