Refs #2877

Closes #2884

- rename filterTxs to removeTxs
- move txsMap into removeTxs func
- rename goodTxs to txsLeft

We should add txs that come in from mempool.Update to the mempool's
cache, so that they never hit a potentially expensive check tx.

Originally posted by @ValarDragon in #2846
#2846 (comment)

Refs #2855

Within every tx in the mempool, we store a 64 bit counter,
as an index for when it was inserted into the mempool.
This counter doesn't really serve any purpose.
It was likely added for debugging at one point,
Removing the counter reclaims memory,
which enables greater mempool sizes / mitigates resources at the same size.

Closes #2835

Ref #2827

(I have since seen #2847 which is a fix for the same issue; this PR has tests and docs too ;) )

* update ConsensusState#OnStop comment

* consensus: set logger for WAL in tests

* refactor privValidator client code and tests

follow-up on #2866

* Fixed accepting integer IDs in requests for Tendermint RPC server (#2366)

* added a wrapper interface `jsonrpcid` that represents both string and int IDs in JSON-RPC requests/responses + custom JSON unmarshallers

* changed client-side code in RPC that uses it

* added extra tests for integer IDs

* updated CHANGELOG_PENDING, as suggested by PR instructions

* addressed PR comments

* added table driven tests for request type marshalling/unmarshalling
* expanded handler test to check IDs
* changed pending changelog note

* changed json rpc request/response unmarshalling to use empty interfaces and type switches on ID

* some cleanup

Fixes #2868 where module=main setting overrides all others

Quick fix for #2902

…t==0 in replay (#2893)

* optimize addProposalBlockPart

* optimize addProposalBlockPart

* if ProposalBlockParts and LockedBlockParts both exist,let LockedBlockParts overwrite ProposalBlockParts.

* fix tryAddBlock

* broadcast lockedBlockParts in higher priority

* when appHeight==0, it's better fetch genDoc than state.validators.

* fix fastsync may stuck by a wrong block

* fixes from updates

* fixes from review

* Align spec with the changes

* fmt

This commit makes both EventNewBlock and EventNewBlockHeader emit tags
on the event bus, so subscribers can use them in queries.

Modify lookForHeight to return a height only there's a equal operator.
Previously, it was returning a height even for range conditions: "height
< 10000".

Fixes #2759

Fixes #2775

#2918)

* upadtes in grpc Marshal and unmarshal

* update comments

…ue (#2919)

Fixes #2908

* prepare changelog

* linkify changelog

* changelog and version

* update changelog