v6.0.0

Breaking

• Require Node.js 8 cd635d4
• Remove flag's aliases from the flags property (#108) f36715c
• Only consider enabling autoHelp/autoVersion in case there is only one argument in process.argv (#114) cd29865
• Switch from loud-rejection to hard-rejection f60c26e

Enhancements

• Add TypeScript definition (#116) f1036df
• Add support for number flag type (#103) 5ef9478
• Add hardRejection option 2bcfee7

v5.0.0...v6.0.0