* docs: fix broken links (#3482)

A bunch of links were broken in the documentation s they included the
`docs` prefix.

* Update CHANGELOG_PENDING

* docs: switch to relative links for github compatitibility (#3482)

* docs: fix broken links (#3482)

A bunch of links were broken in the documentation s they included the
`docs` prefix.

* Update CHANGELOG_PENDING

* docs: switch to relative links for github compatitibility (#3482)

https://tools.ietf.org/html/rfc6962#section-2.1
"The largest power of two less than the number of items" is actually correct!

    For n > 1, let k be the largest power of two smaller than n (i.e.,
    k < n <= 2k).

* spec: specify when MerkleRoot is on hashes

* remove unnecessary hash methods

* update changelog

* fix test

* types: dont hash entire ConsensusParams

* update encoding spec

* update blockchain spec

* spec: consensus params hash

* changelog

* Begin simple merkle compatibility PR

* Fix query_test

* Use trillian test vectors

* Change the split point per RFC 6962

* update spec

* refactor innerhash to match spec

* Update changelog

* Address @liamsi's comments

* Write the comment requested by @liamsi

* Consistent order fields of Timestamp/BlockID fields in CanonicalVote and
CanonicalProposal

* update spec too

* Introduce and use IsZero & IsComplete:
 - update IsZero method according to spec and introduce IsComplete
 - use methods in validate basic to validate: proposals come with a
 "complete" blockId and votes are either complete or empty
 - update spec: BlockID.IsNil() -> BlockID.IsZero() and fix typo

* BlockID comes first

* fix tests

Quick fix for #2902

* tmhash is fully 32 bytes. closes #1990

* AddressSize

* fix tests

* fix max sizes

* types: first field in Canonical structs is Type

* fix spec

* types: dont use SimpleHashFromMap for header. closes #1841

* changelog and spec

* comments

* WIP: switching to fixed offsets for SignBytes

* add version field to sign bytes and update order

* more comments on test-cases and add a tc with a chainID

* remove amino:"write_empty" tag

- it doesn't affect if default fixed size fields ((u)int64) are
written or not
- add comment about int->int64 casting

* update CHANGELOG_PENDING

* update documentation

* add back link to issue #1622 in documentation

* remove JSON tags and add (failing test-case)

* fix failing test

* update test-vectors due to added `Type` field

* change Type field from string to byte and add new type alias

- SignedMsgType replaces VoteTypePrevote, VoteTypePrecommit and adds new
ProposalType to separate votes from proposal when signed

- update test-vectors

* fix remains from rebasing

* use SignMessageType instead of byte everywhere

* fixes from review

* 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

* 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

* 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

* lint docs with write-good, stop-words

* remove package-lock.json

* update changelog

* fix wrong paragraph formatting

* fix some docs formatting

* fix docs format

* fix abci spec format

* docs: deprecate specification dir, closes #1814

* update genesis

* old spec dir, deprecation complete

* rm a file

This reverts commit d02c5d1e30.

protobuf -> proto
protobuf version X -> protoX

This reverts commit 96a3502

according to: https://github.com/tendermint/go-crypto/pull/110#issuecomment-394048086