For KnightLab people only:
Changes made to javascript and CSS must be deployed to cdn.knightlab.com to be used. If you haven't yet, check out that Git repository to the same directory that contains your storymapjs respository.
To stage your changes without forcing latest users ahead, type fab stage This runs a build, copies the files into a versioned directory in your local cdn.knightlab.com repository, and tags the last commit with a version number.
To stage your changes to latest, type fab stage_latest This copies files from the versioned directory in your local cdn.knightlab.com respository into the corresponding latest directory.
You have to push and deploy all CDN changes separately.