Attempts to get greenkeeper-lockfile working in AppVeyor CI.
greenkeeperio/greenkeeper-lockfile#80
Updated when a new version of test-greenkeeper-lockfile-appveyor-package gets published.
Branches:
- master Test normal usage.
- appveyor-for-linux Failed attempt using AppVeyor for Linux configuration.
- msys-bash-node Failed attempt to get exec to spawn a new instance of the current shell (bash).