What you call readline controls I call wordwise - but yes that is indeed supported by Kinto. You will want to undo any of your custom remaps on modifier keys before you install Kinto as it will not be aware of your own remapping attempts. Going forward you would also be best served by updating new keymaps in ~/.kinto/kinto.py if you can do so.

I do not yet have a method though to help you easily keep your changes when upgrading to newer Kinto versions. I will try to add a git like merging ability to the updates later on though, so custom local changes will be preserved.