v8.0.0

Breaking

• Require Node.js 10 df050ac
• Always throw if unable to overwrite (#38) 4668c5a
• Rename some ProgressData properties 1b5e072
  • progress.src → progress.sourcePath
  • progress.dest → progress.destinationPath
  • progress.written → progress.writtenBytes

v7.0.0...v8.0.0