* switch to amino for SignBytes and add Reply with error message

- currently only Vote is done

* switch Reply type in socket for other messages

 - add error description on error

* add TODOs regarding error handling

* address comments from peer review session (thx @xla)

 - contains all changes besides the test-coverage / error'ing branches

* increase test coverage:

 - add tests for each newly introduced error'ing code path

* return error if received wrong response

* add test for wrong response branches (ErrUnexpectedResponse)

* update CHANGELOG_PENDING and related documentation (spec)

* fix typo: s/CanonicallockID/CanonicalBlockID

* fixes from review

* add missing options to config.toml template and docs
Refs #2232
* config#ValidateBasic
Refs #2232
* [config] timeouts as time.Duration, not ints
Why:
- native type provides better guarantees than ", in ms" comment (harder
to shoot yourself in the leg)
- flexibility: you can change units

* Add additional metrics to p2p and consensus
Partially addresses https://github.com/cosmos/cosmos-sdk/issues/2169.
* WIP
* Updates from code review
* Updates from code review
* Add instrumentation namespace to configuration
* Fix test failure
* Updates from code review
* Add quotes
* Add atomic load
* Use storeint64
* Use addInt64 in writePacketMsgTo

* docs: link consensus to blockchain spec. closes #2422

* docs: deprecate research section. closes #2401

* docs: fix some links

* docs: fix some markdown lists

* docs: fix more links

* mempool: update some comments

* make build_c

* docs: notes about databases and WAL files

* docs: determinism. closes #1279

* docs: small note about query paths. closes #2090

* docs: gas

* docs: abci consensus params

* ungitignore
* add docs/.vuepress to enable local builds
* config.js needs to be here, one less step
* docs: make spec in sidebar nicer
* docs: local build instructions

* follow up to removing some consensus params Refs #2382
* change args type to int64 in state#makeParams
* make valsCount and evidenceCount ints again
* MaxEvidenceBytesPerBlock: include magic number in godoc
* [spec] creating a proposal
* test state#TxFilter
* panic if MaxDataBytes is less than 0
* fixes after review
* use amino#UvarintSize to calculate overhead
0c74291f3b/encoder.go (L85-L90)
* avoid cyclic imports
* you can do better Go, come on
* remove testdouble package

Closes #2421.
I am of the opinion that the spec is easier to read than this though,
and we shouldn't really explain this here other than that we use a variant
of station to station protocol, with X25519 for the diffie hellman, and we
describe the related security properties.

Fix inconsistent documents and code

and fix formatting

Refs https://github.com/tendermint/tendermint/pull/2417#discussion_r218080500

Why:
original fork is abandoned and not supported anymore.

Changes:
- LevelDB 1.19 (LevelDB and Snappy are both compiled and linked statically, so while you will not need them installed on your target machine, you should have a roughly compatible version of libstdc++.)
- snappy and lz4 libs included by default

* update DOCS_README
* add spec to docs & other lil fixes (#2402)

* [rpc] transform /status result.node_info.other into map
* amino does not support maps, duh

Refs #2391

* Make mempool aware of MaxGas requirement

* update spec

* Add tests

* Switch GasWanted from kv store to persistent kv store

* Fix typo in test name

* switch back to using kvstore, not persistent kv store

* md links dont work in slate

* docs: link to rpc

* docs: use unsafe_reset_all

* do not advertise unsafe_reset_priv_validator

* Start of ADR

* flesh out abci events and errors adrs

* adr: move 012 to 023

* adr-022: add note from cwgoes

* move spec/software/abci.md to spec/abci/apps.md and improve it
* move some of app-dev/app-development.md to spec/abci/client-server.md

* better overview section
* section on tags
* remove notes about state/concurrency from CheckTx
* incorporate feedback from #2249
* explain how validator set updates effect future blocks

* addr_book_strick=false on local nets

* link to spec

* spec: remove TODO, see #1749 instead

* spec: make issues from TODOs

* update docs on addr_book_strict option

* Implement BFT time

* set LastValidators when creating state in state helper

for heights >= 2