Add the missing network.protocol-handler.external.* entries
Add the missing network.protocol-handler.external.* entries

It seems that these are not needed and only the
network.protocol-handler.expose.(protocol) is needed to make the
protocol work. We'll still set these to be consistent and to avoid
surprises.

pyllyukko/user.js,pyllyukko/user.js,nodiscc/user.js,Toromtomtom/user.js,nodiscc/user.js,Toromtomtom/user.js