Previously, the default version was loaded from a java constant. This version used to be updated by hand after the release train was published to maven central, then built and deployed by hand. Spring-Cloud-Cli is now built and deployed automatically, but the bom version hasn't been updated.
The constant was replaced with the contents of a file that is updated at build time. This process works for development and release without any manual intervention.
Fixes gh-174
4ce50062df