Hi,
I finally got tired of having to remove actions from my job json file instead of being able to comment them out and hacked up a shell script that lets me write my jobs in YAML:
https://gist.github.com/mwhudson/89d0f880f85aadca0493
(there is a sample, slightly terrifying, job in YAML in the gist too).
I've only been using this for about 15 minutes but I think I like it already ;-)
Cheers, mwh