jest config in package.json gets ignored

[jaredmcdonald]

Versions of kyt, node, OS

0.3.x, 6.9.x, OSX Sierra

Bug or Feature?

enhancement/bug

Current Behavior

looking into #329 revealed (I think) that jest config in package.json is getting ignored. this seems a little confusing to ignore the canonical way of configuring Jest

Desired Behavior

our jest config builder should pull the jest config out of the user's package.json, merge that onto the kyt defaults, and then feed it to modifyJestConfig

@tizmagik, thoughts?

[tizmagik]

@jaredmcdonald yea that probably makes sense. Another thing we might need to consider is if users pass in a Jest configuration at the command line, we would need to also take that into account before merging kyt's configuration.