Already mentioned on github, but just in case more eyes see it here, the fitvids plugin does not work with the kaltura video player.
https://github.com/davatron5000/FitVids.js/issues/44
I use the kaltura-all-in-one plugin on my WordPress site and the only real missing piece is getting my videos to be fluid and to maintain aspect ratios. Hoping someone better than I can get it working with kaltura.
