Fix poster image to match the video in the 'combined-tracks.html' example in sandbox#4164

Merged

gkatsev merged 2 commits intovideojs:masterfrom OwenEdwards:chore/remove-incorrect-poster-from-sandbox-example

Mar 6, 2017

+2-2

Commits on Mar 4, 2017

Remove poster image which doesn't match the video from the 'combined-tracks.html' example in sandbox
OwenEdwards
committed

Commits on Mar 6, 2017

Use Elephants Dream poster from the CDN for the combined-tracks.html example
OwenEdwards
committed