update Tor Launcher for ESR 60

Tor Launcher will need some updates for compatibility with the Firefox ESR 60 code. There is one issue we know of so far:

Replace nsIScriptableDateFormat with Intl.DateTimeFormat(). See https://bugzilla.mozilla.org/show_bug.cgi?id=1313625

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information