- [Fix] `sync`: ensure that the path is a string, explicitly
 - [Fix] correctly resolve dir paths when file with the same name exists (#124)
 - [Fix] error code MODULE_NOT_FOUND instead of ENOTDIR (#121)
 - [Dev Deps] update `eslint`
 - [Tests] improve failure scenarios
 - [Tests] [eslint] add `npm run lint`
 - [Tests] up to `node` `v7.9`, `v6.10`, `v4.8`; comment out OSX builds
 - [Tests] node 0.6 can’t support an npm that understands scoped packages