Replace testing.T.Cleanup() with deferred function
calls in test helpers as those cleanup functions
need to be called once the helper returns and not
when the entire test ends.

This reverts a few of the changes introduced in #5723.

Thanks: @erikgrinaker for pointing this out.
Ref: #5732

*testing.T.TempDir() causes test cases to fail when
it is unable to remove the temporary directory once
the test case execution terminates. This seems to
happen often with pex reactor test cases.

Bumps [vuepress-theme-cosmos](https://github.com/cosmos/vuepress-theme-cosmos) from 1.0.175 to 1.0.176.
- [Release notes](https://github.com/cosmos/vuepress-theme-cosmos/releases)
- [Commits](https://github.com/cosmos/vuepress-theme-cosmos/commits)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

I introduced a new variable - syncEnded, which is now used to prevent
sending new events to channels (which would block otherwise) if reactor
is finished syncing

Closes #4591

## Description

I'm just doing a self audit of the light client. There's a few things I've changed

- Validate trust level in `VerifyNonAdjacent` function
- Make errNoWitnesses public (it's something people running software on top of a light client should be able to parse)
- Remove `ChainID` check of witnesses on start up. We do this already when we compare the first header with witnesses
- Remove `ChainID()` from provider interface

Closes: #4538

Closes #5705

## Description

- remove circleci badge from readme

Closes: #XXX

`abci.Client`:

- Sync and Async methods now accept a context for cancellation
    * grpc client uses context to cancel both Sync and Async requests
    * local client ignores context parameter
    * socket client uses context to cancel Sync requests and to drop Async requests before sending them if context was cancelled prior to that

- Async methods return an error
    * socket client returns an error immediately if queue is full for Async requests
    * local client always returns nil error
    * grpc client returns an error if context was cancelled before we got response or the receiving queue had a space for response (do not confuse with the sending queue from the socket client)

- specify clients semantics in [doc.go](https://raw.githubusercontent.com/tendermint/tendermint/27112fffa62276bc016d56741f686f0f77931748/abci/client/doc.go)

`mempool.TxInfo`

- add optional `Context` to `TxInfo`, which can be used to cancel `CheckTx` request

Closes #5190

Replace defer with t.Cleanup().

Replace the combination of ioutil.TempDir, error checking
and defer os.RemoveAll() with Go testing.T's new TempDir()
helper.

Mark auxiliary functions as test helpers.

* remove circle

* remove prefix

This fixes spurious `TestByzantinePrevoteEquivocation` failures by extending the block range and time spent waiting for evidence. I've seen many runs where the evidence isn't committed until e.g. height 27. Haven't looked into _why_ this happens, but as long as the evidence is committed eventually and the test doesn't spuriously fail I'm (mostly) happy. WDYT @cmwaters?

## Description

- add `AbciVersion` RequestInfo

Closes: #2804

This caused stack overflow panics in E2E tests, e.g.:

```
2020-11-24T02:37:17.6085640Z validator04    | runtime: goroutine stack exceeds 1000000000-byte limit
2020-11-24T02:37:17.6087818Z validator04    | runtime: sp=0xc0234b23c0 stack=[0xc0234b2000, 0xc0434b2000]
2020-11-24T02:37:17.6088920Z validator04    | fatal error: stack overflow
2020-11-24T02:37:17.6089776Z validator04    | 
2020-11-24T02:37:17.6090569Z validator04    | runtime stack:
2020-11-24T02:37:17.6091677Z validator04    | runtime.throw(0x12dc476, 0xe)
2020-11-24T02:37:17.6093123Z validator04    | 	/usr/local/go/src/runtime/panic.go:1116 +0x72
2020-11-24T02:37:17.6094320Z validator04    | runtime.newstack()
2020-11-24T02:37:17.6095374Z validator04    | 	/usr/local/go/src/runtime/stack.go:1067 +0x78d
2020-11-24T02:37:17.6096381Z validator04    | runtime.morestack()
2020-11-24T02:37:17.6097657Z validator04    | 	/usr/local/go/src/runtime/asm_amd64.s:449 +0x8f
2020-11-24T02:37:17.6098505Z validator04    | 
2020-11-24T02:37:17.6099328Z validator04    | goroutine 88 [running]:
2020-11-24T02:37:17.6100470Z validator04    | runtime.heapBitsSetType(0xc009565380, 0x20, 0x18, 0x1137e00)
2020-11-24T02:37:17.6101961Z validator04    | 	/usr/local/go/src/runtime/mbitmap.go:911 +0xaa5 fp=0xc0234b23d0 sp=0xc0234b23c8 pc=0x432625
2020-11-24T02:37:17.6103906Z validator04    | runtime.mallocgc(0x20, 0x1137e00, 0x117b601, 0x11e9240)
2020-11-24T02:37:17.6105179Z validator04    | 	/usr/local/go/src/runtime/malloc.go:1090 +0x5a5 fp=0xc0234b2470 sp=0xc0234b23d0 pc=0x428b25
2020-11-24T02:37:17.6106540Z validator04    | runtime.convTslice(0xc002743710, 0x21, 0x21, 0xc0234b24e8)
2020-11-24T02:37:17.6107861Z validator04    | 	/usr/local/go/src/runtime/iface.go:385 +0x59 fp=0xc0234b24a0 sp=0xc0234b2470 pc=0x426379
2020-11-24T02:37:17.6109315Z validator04    | github.com/tendermint/tendermint/crypto/secp256k1.PubKey.String(...)
2020-11-24T02:37:17.6151692Z validator04    | 	/src/tendermint/crypto/secp256k1/secp256k1.go:161
2020-11-24T02:37:17.6153872Z validator04    | github.com/tendermint/tendermint/crypto/secp256k1.(*PubKey).String(0xc009565360, 0x11e9240, 0xc009565360)
2020-11-24T02:37:17.6157421Z validator04    | 	<autogenerated>:1 +0x65 fp=0xc0234b24f8 sp=0xc0234b24a0 pc=0x656965
2020-11-24T02:37:17.6159134Z validator04    | fmt.(*pp).handleMethods(0xc00956c680, 0x58, 0xc0234b2801)
2020-11-24T02:37:17.6161462Z validator04    | 	/usr/local/go/src/fmt/print.go:630 +0x30a fp=0xc0234b2768 sp=0xc0234b24f8 pc=0x518b8a
[...]
2020-11-24T02:37:17.6649685Z validator04    | 	/usr/local/go/src/fmt/print.go:630 +0x30a fp=0xc0234b7f48 sp=0xc0234b7cd8 pc=0x518b8a
2020-11-24T02:37:17.6651177Z validator04    | created by github.com/tendermint/tendermint/node.startStateSync
2020-11-24T02:37:17.6652521Z validator04    | 	/src/tendermint/node/node.go:587 +0x150

```

Bumps [github.com/cosmos/iavl](https://github.com/cosmos/iavl) from 0.15.0-rc5 to 0.15.0.
- [Release notes](https://github.com/cosmos/iavl/releases)
- [Changelog](https://github.com/cosmos/iavl/blob/master/CHANGELOG.md)
- [Commits](https://github.com/cosmos/iavl/compare/v0.15.0-rc5...v0.15.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

## Description

- separate docs related to running nodes into the nodes dir. 
- keep old files but dont display them
- bring over debugging like a pro blog

Closes: #XXX

* test/e2e: enable v1 and v2 blockchains

* modify networks/ci.toml

Closes #5444

Now we record the fact that a peer does not have a requested block and later use this information to make a new request for the same block from another peer.

## Description

_Please add a description of the changes that this PR introduces and the files that
are the most critical to review._ 

Closes: #XXX

This updates the goreleaser tooling to build the same binaries that were built for the 0.34.0 release.

"Squashes" the changelog from RCs 2-6 into one changelog message for 0.34.0, and adds the changelog pending.

Co-authored-by: Marko <marbar3778@yahoo.com>

Refs #2888

## Description

Hardcode ed25519 to dialTCPFn in e2e tests. 

I will backport `DefaultRequestHandler` fixes

This will be replaced when grpc is implemented.

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from v1.0.14 to v1.0.15.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Commits](https://github.com/codecov/codecov-action/compare/v1.0.14...239febf655bba88b16ff5dea1d3135ea8663a1f9)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

This is so that the `privval` package will not be affected when we refactor `p2p` (#5670). We will be migrating to gRPC shortly (#4698).

[Rendered](https://github.com/tendermint/tendermint/blob/erik/adr-p2p-architecture/docs/architecture/adr-062-p2p-architecture.md)

ADR for the new P2P architecture and abstractions. Related to #2067.

Bumps IAVL, which pulled in some other upgrades as well. I think they should be fine though.

Bumps [rtCamp/action-slack-notify](https://github.com/rtCamp/action-slack-notify) from e9db0ef to 2.1.1. This release includes the previously tagged commit.
- [Release notes](https://github.com/rtCamp/action-slack-notify/releases)
- [Commits](https://github.com/rtCamp/action-slack-notify/compare/e9db0ef...ecc1353ce30ef086ce3fc3d1ea9ac2e32e150402)

Signed-off-by: dependabot[bot] <support@github.com>

Remove unused ReadFile (unused) and
WriteFile (almost unused, alias of ioutil.WriteFile).

Add testcases for Must{Read,Write}File.

## Description

- remove installation of protoc
- use buf protoc to generate proto stubs

prior to approving could someone test locally. I restarted my docker instance and its been stuck for 20+ minutes

Closes: #XXX

Bumps [github.com/tendermint/tm-db](https://github.com/tendermint/tm-db) from 0.6.2 to 0.6.3.
- [Release notes](https://github.com/tendermint/tm-db/releases)
- [Changelog](https://github.com/tendermint/tm-db/blob/master/CHANGELOG.md)
- [Commits](https://github.com/tendermint/tm-db/compare/v0.6.2...v0.6.3)

Signed-off-by: dependabot[bot] <support@github.com>

Refs #5550