* Make sure config.TimeoutBroadcastTxCommit < rpcserver.WriteTimeout()

* remove redundant comment

* libs/rpc/http_server: move Read/WriteTimeout into Config

* increase defaults for read/write timeouts

Based on this article
https://www.digitalocean.com/community/tutorials/how-to-optimize-nginx-configuration

* WriteTimeout should be larger than TimeoutBroadcastTxCommit

* set a deadline for subscribing to txs

* extract duration into const

* add two changelog entries

* Update CHANGELOG_PENDING.md

Co-Authored-By: melekes <anton.kalyaev@gmail.com>

* Update CHANGELOG_PENDING.md

Co-Authored-By: melekes <anton.kalyaev@gmail.com>

* 12 -> 10

* changelog

* changelog

* changelog: fix formatting

* update release notes

* update changelog

* linkify

* update UPGRADING

* Update release summary

* Add pubsub config changes

* Add link to issue for pubsub changes

* bump ABCIVersion due to renaming BlockSizeParams -> BlockParams
(https://github.com/tendermint/tendermint/pull/3417#discussion_r264974791)

* Move changelog on consensus params entry to breaking

* Add @melekes' suggestion for breaking change in pubsub into upgrading.md

* Add changelog entry for #3351

* Add changelog entry for #3358 & #3359

* Add changelog entry for #3397

* remove changelog entry for #3397 (was already released in 0.30.2)

* move 3351 to improvements

* Update changelog comment

- update changelog, reset pending
 - bump versions
 - add external contributors (partly manually)

* libs/db: close batch (#3397)

ClevelDB requires closing when WriteBatch is no longer needed, https://godoc.org/github.com/jmhodges/levigo#WriteBatch.Close

Fixes the memory leak in https://github.com/cosmos/cosmos-sdk/issues/3842

* update changelog and bump version to 0.30.2

Should fix #3295
Also partial fix of #3043

* changelog, upgrading, version

* update for evidence fixes

* linkify

* fix an entry

* remove MixEntropy

* changelog

* update changelog

* linkify

* bump version

* update main changelog

* final fixes

* entry for wal fix

* changelog preamble

* remove a line

* update changelog and upgrading

* add note about max voting power in abci spec

* update version

* changelog

* changelog pending and upgrading

* linkify and version bump

* changelog shuffle

* crypto: revert to mainline Go crypto lib

We used to use a fork for a modified bcrypt so we could pass our own
randomness but this was largely unecessary, unused, and a burden.
So now we just use the mainline Go crypto lib.

* changelog

* fix tests

* version and changelog

* makeNodeInfo returns error

* version and changelog

* update changelog

* linkify

* changelog and version

* p2p: test case for peer count mismatch #2332

* p2p: fix peer count mismatch #2332

* changelog

* use httptest.Server to scrape Prometheus metrics

* p2p: panic on transport error

Addresses #2823. Currently, the acceptRoutine exits if the transport returns
an error trying to accept a new connection. Once this happens, the node
can't accept any new connections. So here, we panic instead. While we
could potentially be more intelligent by rerunning the acceptRoutine, the
error may indicate something more fundamental (eg. file desriptor limit)
that requires a restart anyways. We can leave it to process managers to
handle that restart, and notify operators about the panic.

* changelog

* update changelog

* changelog, upgrading, version

* prepare changelog

* linkify changelog

* changelog and version

* update changelog

* update CONTRIBUTING with notes on CHANGELOG

* update changelog

* changelog and version

* add adr-034

* update changelog

* minor changes

* do some refactor

* changelog and version

* fix changelog

* Require addressbook to only store addresses with valid ID

* Do not shut down peer immediately after sending pex addrs in SeedMode

* p2p: fix #2773

* seed mode: use go-routine to sleep before stopping peer

* changelog_pending -> changelog

* update changelog

* update changelog

* update changelog and upgrading

* libs/autofile: bring back loops

* changelog, version

This now uses one hkdf on the X25519 shared secret to create
a key for the sender and receiver.
The hkdf call is now just called upon the computed shared
secret, since the shared secret is a function of the pubkeys.

The nonces now start at 0, as we are using chacha as a stream
cipher, and the sender and receiver now have different keys.