* fixing issue 2015

* Remove comments for code review

* Update tests

* clist: Speedup detachNext() and detachPrev()

We used unnecessary function calls, defers, and extra mutexes.
These are not our friends for writing fast code in our libs.

* Remove more defers from clist functions

* Add more benchmarks

All functions in cmap have just one code path. Thus there is not a reason
to use defer statements.

* mempool: Keep cache hashmap and linked list in sync

This removes bugs with the linked list being full, but hashmap empty

* address PR comments

* switch clist back to list

Add missing changelog entry

Refs #1954

* libs: Remove usage of custom Fmt, in favor of fmt.Sprintf

Closes #2193

* Fix bug that was masked by custom Fmt!

* remove gogoproto from tools

because it's not a binary

* update protobuf version to 3.6.1 in `make get_protoc`

* update libs/common/types.pb.go and rpc/grpc/types.pb.go

* fix app tests

* add json2wal & fix wal2json

* fix bug

* Update main.go

* add wal2JsonTest file

* Delete wal2JsonTest

* crypto: Add compact bit array for intended usage in the multisig

This is in a separate PR for ease of review.

* (squash this) add comment

This adds an ADR entry addressing the implementation of a `ProposeTx`
method in the ABCI proposed in #1776. Fundamentally, this proposal gives
some control of block proposals to the application. The initial use case is
to support the Minimal Viable Plasma specification.

* ADR: Proposal for multisignature encoding

This proposal is partially tied to the resolution of #1957.

* Change title to Encoding standard for multisignatures

* ADR: Change multisigs ADR now that amino must be used for pubkeys

* Address PR comments

docs: fix links & other improvements

speed up some tests. ref #2038

adr: chain-versions

adr: protocol versioning

[ADR] ABCI Validators

Merge pull request #2152 from tendermint/release/v0.23.0

Release/v0.23.0

change ABCI header to match Tendermint exactly

Now that Tendermint Amino will be compatible with proto3, the Header in ABCI
should exactly match the Tendermint header - they will then be encoded
identically in ABCI and in Tendermint Core.

Refs #265

Bucky/merge 0.23.0 to develop

- use cmn.Fingerprint and %X

Signatures are now []byte, which saves on the number of bytes after
amino encoding

(squash this) address Ismail's comment

add proposer address to block's Header

- state.MakeBlock takes a proposerAddr
- validateBlock only checks that the ProposerAddress is in the validator
  set
- fix raceyness from bad proposer test:
  - use privValidator to get the proposer address (instead of racy
    state)
  - note we had to remove the test that checked the correct proposer was
    included for higher rounds because we don't have a good way to test
    this with multiple consensus states and not using the
    privValidator.Address while calling createProposalBlock was a hack!

Refs #1134

Validation:

- ignored in block.ValidateBasic since it's stateful information
- checked in blockExec.ValidateBlock

ValidatorSet change delayed by 1 block, and lite refactor (#2)

* p2p/pex: Allow configured seed nodes to be offline

Previously you couldn't startup tendermint if a seed node was offline.
This now allows you to startup tendermint, as long as all seed node addresses
are formatted correctly. In the event that all seed nodes are down,
and the address book is empty, then it crashes with an informative error msg.
(This case doesn't occur if no seeds were specified)

Closes #1716

* (Squash this) Address melekes' comments

* (squash this) fix package imports

* (squash this) fix pex_reactor comment

* (squash this) add a test case

[ADR] Proposal for encoding symmetric cryptography

[ADR] Fix malleability problems in Secp256k1 signatures

update genproto

consensus: non-responsive to CTRL-C if consensus state panics