log tweaks

Don't bid for outbound-only NTCP2 addresses
Fix NTCP2 cost when transitioning to inbound

to match spec changes

Connection headers containing "upgrade" (ticket #2422)
Server-side change only. Client-side in previous commit.

Connection headers containing "upgrade" (ticket #2422)
Client-side change only. Server-side todo.

Don't send FROM in RESET, not required since 0.9.20
Send RESET when SYN signature verification fails
Use cached buffers for signature verification
Move setOptionalFrom() from Packet to PacketLocal
Always verify packets with signatures, even if not required
AIOOBE checks
cleanups, log tweaks

Use correct key to sign SessionConfig with offline keys
LeaseSetKeys cleanups

Allow any JRE or JDK to work

Support comma-separated values,
check param in session config,
support stored EncTypes in private keys.
Show types and multiple keys on LS debug page