cmd/puppeth: graceful shutdown on redeploys

* consensus/ethash: start remote ggoroutine to handle remote mining

* consensus/ethash: expose remote miner api

* consensus/ethash: expose submitHashrate api

* miner, ethash: push empty block to sealer without waiting execution

* consensus, internal: add getHashrate API for ethash

* consensus: add three method for consensus interface

* miner: expose consensus engine running status to miner

* eth, miner: specify etherbase when miner created

* miner: commit new work when consensus engine is started

* consensus, miner: fix some logics

* all: delete useless interfaces

* consensus: polish a bit

mobile: fix missing return for CallMsg.SetTo(nil)

- Update benchmarks to use a pool of int pools.
  Unless benchmarks are aborted with segmentation fault.

Signed-off-by: Hyung-Kyu Choi <hqueue@users.noreply.github.com>

tests: enable the Constantinople fork definition

Revert "cmd/evm: change error msg output to stderr (#17118)"

This reverts commit fb9f7261.

* rpc: Make HTTP server timeout values configurable

* rpc: Remove flags for setting HTTP Timeouts, configuring via .toml is sufficient.

* rpc: Replace separate constants with a single default struct.

* rpc: Update HTTP Server Read and Write Timeouts to 30s.

* rpc: Remove redundant NewDefaultHTTPTimeouts function.

* rpc: document HTTPTimeouts.

* rpc: sanitize timeout values for library use

* cmd/evm: change error msg output to stderr

* cmd/evm: fix some linter error

trie: handle removing the freshest node too

* swarm: merged stream-tests migration to develop

* swarm/network: expose simulation RandomUpNode to use in stream tests

* swarm/network: wait for subs in PeerEvents and fix stream.runSyncTest

* swarm: enforce waitkademlia for snapshot tests

* swarm: fixed syncer tests and snapshot_sync_test

* swarm: linting of simulation package

* swarm: address review comments

* swarm/network/stream: fix delivery_test bugs and refactor

* swarm/network/stream: addressed PR comments @janos

* swarm/network/stream: enforce waitKademlia, improve TestIntervals

* swarm/network/stream: TestIntervals not waiting for chunk to be stored

cmd/puppeth: force tiny memory for geth attach in id lookup

cmd/puppeth: split banned ethstats addresses over columns

* all: simplify switches

* silly mistake

build: rename swarm deb package to ethereum-swarm; change swarm deb version from 1.8.x to 0.3.x (#16988)

* build: add support for different package and binary names

* build: bump up copyright date

* build: change default PackageName to empty string

* build, internal, swarm: enhance build/release process

* build: hack ethereum-swarm as a "depends" in deb package

* build/ci: remove redundant variables

* build, cmd, mobile, params, swarm: remove VERSION file; rename Version to VersionMeta;

* internal: remove VERSION() method which reads VERSION file

* build: fix VersionFilePath to Version

* Makefile: remove clean_go_build_cache.sh until it works

* Makefile: revert removal of clean_go_build_cache.sh

internal, vendor: update Azure blobstore API

* core/blockchain: export progress

* core: polish up chain export progress report a bit

* cmd: stop parsing bootnodes if one is invalid

* cmd/geth: require valid command as argument (or no arg)

build: deprecated ubuntu artful, enable ubuntu cosmic

build: noop clean during travis debsrc assembly step