Upgrade Scripts in data-fair Services

@data-fair/lib-node/upgrade-scripts is the migration runner used by data-fair services. At service startup it scans the upgrade/ directory for version-named subfolders, compares them against the version recorded in the services Mongo collection, and runs the scripts whose folder version is >= the recorded version. After running, it stores the current package.json version back in the services collection.

The one rule about the folder name

Name the folder after the version of the last release of the service at the time you write the script. Never after an anticipated future version.

Why this is the rule