Documentation fixes (it's drush webpack:serve, not yarn :)).
Refactoring. The Libraries trait has been split into 3 separate services. Bundling has been decoupled from Drush, so maybe we can get rid of this dependency at some point.
Added the ability to configure the port of webpack:serve.
The 8.x-2.x branch of ContentHub is a complete rewrite focussed on Drupal 8 development practices and increased developer influence in the process of creating, consuming and calculating the CDF data used by ContentHub to move data from one site to another.