test: Add tests for electron-userland#554

fix(nsis): installerHeaderIcon

Close electron-userland#525

fix: Build failing when productName contains a slash

Close electron-userland#539

feat(publisher): Check that tag name starts with "v" electron-userlan…

…d#340

feat(nsis): Different Icon for installer / App ? (Windows)

Closes electron-userland#525

fix(mas): cannot find mas installer

Closes electron-userland#535

feat(nsis): MUI_HEADERIMAGE electron-userland#525

fix: Installation Has Failed - Seems to be an issue with the RELEASES…

… file

Closes electron-userland#534

test: use prepared wine&co bottle

docs: platform-specific icon path