The transition of the Multi Image Control to the new Customizer API is complete.
Good enough
The Multi Image Control for the WordPress Theme Customizer is done; it has been a great ride on the WordPress Theme Customizer JavaScript API and Backbone and it has been immensely instructive.
I’ve tagged my iterations as the code evolved until I got to a version that’s ready to work as a full-blown plugin.
Next
I will try to release the plugin to the WordPress plugin repository and that might and will need some more work.