only create a single session for duplicate Initials

update the ALPN tokens to draft-28

drop duplicate packets

remove noisy log statement in frame sorter test

fix flaky qlog unit tests

implement the 3x amplification limit

This will trigger the amplification protection.

Duplicate detection uses the same data structure that is used to track
received packets to gener...

rewrite the frame sorter

update golangci-lint to v1.27.0

retire conn IDs with sequence numbers smaller than the currently active

remove unused readOffset member variable in receiveStream

fix int overflow when parsing the transport parameters

use struct{} instead of bool in window update queue

update the protobuf library to google.golang.org/protobuf/proto

use the correct error code for crypto stream errors

bundle small writes on streams

reduce the length of the unprocessed packet chan in the session

fix flaky session unit test

add a send stream test that randomly acknowledges and loses data

fix size calculation for version negotiation packets

run all unit tests with race detector

add support for the ChaCha20 interop test case

fix buffer use after it was released when sending an INVALID_TOKEN error

run the internal and http3 tests with race detector on Travis

reset the PTO when dropping a packet number space

stop the deadline timer in Stream.Read and Write

don't reset pto_count on Initial ACKs

fix all race conditions in the session tests

make sure that the server's run loop returned when closing

fix flaky proxy test

stop the timer when the session's run loop returns

make it more likely that a STREAM frame is bundled with the FIN

disable TLS 1.3 compatibility mode

update the ChaCha implementation, remove 0xffffffff workaround

wait for the session ticket in the interop resumption test

fix qlogging of the remote address when dialing a new connection

reset the PTO count when receiving a Retry

qlog session timeouts

don't dequeue retransmitted STREAM frames after the stream was canceled