Squashed merge of many commits, including (but not limited to) :

Squashed merge of many commits, including (but not limited to) :

Split moonshot-server.vala into linux and win32 pieces

Split moonshot-server.vala into moonshot-server-linix.vala and moonshot-server-msrpc.vala

Implement DBUS call for ConfirmCACertificate

Save server fingerprint in keyring after user approves it; check keyring for fingerprint before asking user to approve it.

Use containers to align the Services: label and list of services
Also, align the expansion/contraction arrow with the top of the idcard widget,
not the middle.

Set background color to white only on Windows

Bug #1632163
No check for duplicate NAIs when modifying an identity

Check for duplicate NAIs after an entity is modified, as well as
checking at startup. If duplicates are found, warn the user.