v7.0.0

Breaking:

• Require Node.js 8 (#33) 5e42b4a
• For TypeScript users only:
  You need to change import cpFile from 'cp-file'; to import cpFile = require('cp-file');

Enhancements:

• Detect read IO errors after open (#33) 5e42b4a

v6.2.0...v7.0.0