Support pkg+http://
Install default FreeBSD pkg.conf
Wrap long lines
Simplify check for invalid pkg.conf
Move legacy pkg.conf reading into its own function
Parse repo-style /etc/pkg/FreeBSD.conf
Move fetching into fetch_to_fd()
Tell where PKG is coming from
Fetch pub and sig
Load fingerprints
Verify signature
Use simpler .sig bundle so only 1 fetch is needed
Tell which fingerprint a pkg is verified against
Add test infrastructure for /etc/keys and current test key
Document /var/cache/pkg while here