so rest of payload can be processed
Improve debug output on errors

This should actually fix the HMAC NPE

Fix OES2 initial state when pending intro
Handle relay response as Alice
Check relay request and relay response sigs as Bob
Remove unused method OES2.reset()
Fix javadoc for one OES state

Alice side:
check for valid v2 introducers,
fetch Bob RIs if not found,
connect if not connected,
then send relay request

Reduce SSU 1/2 max test time as Bob

Change failed transports from a Set to a List for efficiency
Check fail count before getting bids
Don't remove from netdb after a failure
Other minor tweaks

per spec, Alice hash not included in msg 1/2 sig
Add sig checks of msgs 1/3 at Bob
Fix checking of 'B' cap in peer selection

prevent dup SSU2 introducers

Put source address of msg 6 into address block for msg 7
Use msg 7 address block for received address

Add SSU2 parameter support to UDPAddress
Count SSU2 introducers in UDPAddress
Fix reuse of SSU2 introducers
Don't immediately remove introducer for idle time

Fix saving relay tag as Bob
Select introducers by newest connection instead of random
Ping introducers more often
Check and set ping time when pinging introducers
Remove unused nextCipherKey
Debug: Prefer selecting SSU2 introducers
Log tweaks

Possible fix for HMAC NPE

Publish SSU2 introducers

Decrypt and handle hole punch as alice

Put alice hash in relay intro as Bob
Fix relay intro/response generation and signing
Add token to relay response as Charlie
Store relay nonce as Bob
Handle relay response as Bob and forward to Alice
Stub out handling relay response as Alice

Handle relay request as bob
Send relay intro as bob
Send relay response rejection as bob
Check for valid time in relay request and relay intro

Pass relay data from PS2 to Intro manager
Handle relay intro as charlie
Send hole punch as charlie
Send relay response as charlie
Update hole punch format to match spec

ref: RFC 2617 sec. 5.2

to match spec change

Change from unchecked to checked exception on unknown keys

cancel DHT cleaner and explorer on stop

for reportAbuse(), disconnected(), and errorOccurred(),
because a single listener may be registered for multiple ports/protocols

Don't do soft restart if full restart required