Missing dependencies

[brianchirls]

Thanks for this repo. Very useful.

indexof-property and garnish are missing form package.json but are required for tests. I suggest adding them to devDependencies since they don't appear to be necessary for the actual running code.

Other dependencies could use an update as well. The start and stress scripts are failing, and I suspect it may be because of an outdated dependency.

[mattdesl]

True... I need to clean up the tests a bit. 😄