Should tilt_config.json be a dot (hidden) file?

[jazzdan]

It seems odd that Tilt's tilt_config.json configuration file is not a hidden file, especially since it's not meant to be edited by hand.

Should we switch it to be a hidden file (.tilt_config.json) to help clean up the root of folk's repositories?

[hbowron]

Would also be nice if tilt_config.yaml or something were also supported - JSON lack of support for comments is a pain at times.