The gas price was not passed to the `EstimateGas` function. As a result,
conditional execution paths depending on `tx.gasprice` could be not
correctly processed and we could get invalid gas estimates for contract
function calls.

This PR adds a new unit test in miner package which will create some blocks from miner and then import into another chain. In this way, we can ensure all blocks generated by Geth miner obey consensus rules.

Changed http:// to https:// on links in dashboard/README.md

docs: change http to https on links in log/README.md

This updates the DNS TXT record format to the latest
changes in ethereum/EIPs#2313.

prevent users from misconfiguring their nodes so that fork ordering is not preserved.

In Geth, we have two sources for configuration:
(1) Config file
(2) Command line flag

Basically geth will first resolve config file and then overwrite
configs with command line flags.

This issue is: geth should only overwrite configs if flags are truly
set. So before we apply any flag to configs, `GlobalIsSet` check
is necessary.

* update tests for istanbul

* tests: updated blockchaintests, see https://github.com/ethereum/tests/issues/637

* tests: update again, hopefully fixed this time

* tests: skip time consuming, run legacy tests

* tests: update again

* build: disable long-running tests on travis

* tests: fix formatting nits

* tests: I hate github's editor

p2p: measure subprotocol bandwidth usage

* vendor: update leveldb

* ethdb/leveldb: disable seek compaction and add metrics

* vendor: udpate latest levledb

* ethdb/leveldb: fix typo

This change adds support for EIP-1898. 

Fixes #18210

This adds an implementation of node discovery via DNS TXT records to the
go-ethereum library. The implementation doesn't match EIP-1459 exactly,
the main difference being that this implementation uses separate merkle
trees for tree links and ENRs. The EIP will be updated to match p2p/dnsdisc.

To maintain DNS trees, cmd/devp2p provides a frontend for the p2p/dnsdisc
library. The new 'dns' subcommands can be used to create, sign and deploy DNS
discovery trees.

dashboard: log dashboard url

* core/state: revert noop finalise, fix copy-commit-copy

* core/state: reintroduce net sstore tracking, extend tests for it

params: remove legacy bootnodes

deepCopy didn't copy pending storage updates, leading to the
creation of blocks with invalid state root.

vendor: pull in USB Windows fixes