We now exit if Node doesn’t exist. We also warn if the required version of Node doesn’t exist.

Inquiry no longer exits on Chromium crash. Launches Chromium afresh
for each inspection in an inquiry.

  - Current behaviour: exit on disconnection
  - Upgraded Puppeteer to ^0.13.0 to support disconnection event

The HARs generated by Chrome HAR Capturer can have undefined
size values. These are now translated to 0 size values.

Until we automate the installer and the script.

This uses headless Chrome instead of Electron-HAR

(See https://stackoverflow.com/questions/44206782/do-i-commit-the-package-lock-json-file-created-by-npm-5)

You can now specify whether the stats output should start at a
specific index or a specific domain.

* stats --trackers
* stats --sites

Display in columns.

This will help with investigations as it no longer requires a
manual lookup to find the sites.

This was a regression introduced during the spotlight → sites refactoring.

(To turn it on, pass --google. On by default if called without
commandline arguments.)

Closes #35. When you specify the --local flag and a regexp
of CSV file paths, only the domains listed in those CSV files
will be used during the local inquiry.