Basic detection of node.js, Go, and Python packages
srcscan tool
Add package doc
Add test imports in non-test code so that `go get` picks them up
Skip "vendor" dir
Don't skip top-level dir even if it is a SkipDir
Improved node.js package scanning
Show expectation diffs on separate line
Read and populate Go package information using go/build
Determine Go package import paths, if possible
UnitType func to get type name of srcscan.Unit
Set up CircleCI GOPATH
Treat testdata dir as JS tests
Remove extraneous whitespace from package.json files
UnmarshalJSON by unit type
Ignore test binaries