wry v0.6.0

• Initialize covector!
  • 33b64ed chore: covector init (#55) on 2021-02-21
• Support Windows 7, 8, and 10
  • fbf0d17 Adopt Webview2 on Windows (#48) on 2021-02-20
• Dev tools are enabled on debug build
• Add skip task bar option
  • 395b6fb feat: skip_taskbar for windows (#49) on 2021-02-20
• Add custom protocol option
  • a492806 Add custom protocol (#65) on 2021-02-23
• Add transparent option to mac and linux
• Error type has Send/Sync traits
  • 3536b83 Add .changes file in prepare of v0.6 on 2021-02-24
• Replace Callback with RPC handler
  • e215157 Implement draft RPC API (#95) on 2021-03-04
• Add File drop handlers
  • fed0ee7 File drop handlers (#96) on 2021-03-09