v0.6.0

Breaking:

• Require Node.js 10 when used in Node.js b205fe3

Other:

• Avoid use of globals where possible (#74) ab86789
  (This should ease the use of Ky in non-browser environments)
• Fix the throwHttpErrors option for POST requests (#77) 7c7f5fe
• TypeScript definition improvements c504230

v0.5.2...v0.6.0