Update to TMDB API v3

[dbr]

The currently-used v2.1 is almost being ended. Should update to the JSON'y v3 API

http://docs.themoviedb.apiary.io/

[catesandrew]

+1

[felciano]

+1 any outlook on getting this upgraded?

[cytec]

any news on this, seems like the 2.1 api finally stopped working

[dbr]

I've no immediate plans to update it, but there are a few other Python interfaces which have updated for the v3 API, https://github.com/doganaydin/themoviedb seems most similar