Having serverwebroot optional in `fdroid server` means that it can support
multiple methods of hosting, like cloud storage services. `fdroid server`
can also then support multiple repo hosting options at the same time.
This assumes that the smartcard is already setup with a signing key. init
does not generate a key on the smartcard, and skips genkey() if things are
configured to use a smartcard.
This also does not touch APK signing because that is a much more elaborate
question, since each app is signed by its own key.
These options are needed to configure Java's keytool and jarsigner to use
a Hardware Security Module aka HSM aka smartcard. The defaults provided
are meant to make things work as easily as possible.
This also makes the file layout in git basically the same as the installed
file layout, using an examples/ dir. I'm not sure if config.buildserver.py
is an example conf file, or a conf file that is actually in use, so I did
not move it.
