fix: add /debug flag to signtool, do not try to use openssl on Windows …

…electron-userland#2875

fix: rename EP_PRELEASE to EP_PRE_RELEASE

Close electron-userland#2878

docs: update cli docs

fix(electron-updater): set _packageFile to null on clear

feat(windows): Sign resources/*.exe and *.exe files and elevate.exe

Close electron-userland#2853

fix(msi): escape MSI directory id

Close electron-userland#2841

fix(msi): Msi target separates files and subdirectories into differen…

…t directories

Close electron-userland#2272

fix(snap): do not use gtk3 for electron 1.8.3+

fix(snap): electron 1 template is broken

Close electron-userland#2808

fix(snap): electron-builder uses mksquashfs options that are incompat…

…ible with snap store

Close electron-userland#2803