• Bump default Electron to 11.3.0 (with Chromium 87.0.4280.141).
  macOS-segfault-causing icon bug #1101 should remain fixed.
• API docs: fix typo in option "-v" (PR #1114)
• Get rid of dep shelljs and abandoned app dep wurl
• Bump commander from 4 to 7 and eslint-config-prettier from 7 to 8