* trie: disable fnv64a hashing of hashes for bigcache

* trie/database: add very important period

* swarm/network/simulation: test cases refactored

* swarm/pss: minor refactoring

* swarm/simulation: UploadSnapshot updated

* swarm/network: style fix

* swarm/pss: bugfix

* cmd/swarm, p2p, swarm: Enable ENR in binary/execadapter

* cmd/p2p/swarm: Remove comments + config.Enode nomarshal

* p2p/simulations: Remove superfluous error check

* p2p/simulation: Move init enode comment

* swarm/api: Check error in config test

* swarm, p2p/simulations, cmd/swarm: Use nodekey in binary record sign

* cmd/swarm: Make nodekey available for swarm api config

* travis: remove verbose from Swarm race tests

By removing -v our output will be cleaner, but the Travis job still
won't be terminated - due to 'no output for 10 minutes' - as keepalive
.sh produces a log line every 5 minutes.

* travis: extend Swarm race detection to p2p subpackages

As p2p/protocols, p2p/simulations and p2p/testing packages mostly
belong to the Swarm team.

* les: fixed peer id format

* les: fixed peer reply error handling

* contracts/ens: update public resolver solidity code

* contracts/ens: update public resolver, update go bindings

* update build

* fix ens.sol

* contracts/ens: change contract interface

* contracts/ens: implement public resolver changes

* contracts/ens: added ENSRegistry contract

* contracts/ens: reinstate old contract code

* contracts/ens: update README.md

* contracts/ens: added test coverage for fallback contract

* contracts/ens: added support for fallback contract

* contracts/ens: removed unused contract code

* contracts/ens: add todo and decode multicodec stub

* add encode

* vendor: add ipfs cid libraries

* contracts/ens: cid sanity tests

* contracts/ens: more cid sanity checks

* contracts/ens: wip integration

* wip

* Revert "vendor: add ipfs cid libraries"

This reverts commit 29d9b6b294ded903a1065d96c8149119713cfd12.

* contracts/ens: removed multiformats dependencies

* contracts/ens: added decode tests

* contracts/ens: added eip spec test, minor changes to exiting tests

* contracts/ens: moved cid decoding to own file

* contracts/ens: added unit test to encode hash to content hash

* contracts/ens: removed unused code

* contracts/ens: fix ens tests to use cid decode and encode

* contracts/ens: adjust swarm multicodecs after pr merge

* contracts/ens: fix linter error

* constracts/ens: address PR comments

* cmd, contracts: make peoples lives easier

* contracts/ens: fix linter error

* contracts/ens: address PR comments

les, light: verbose errors on state retrieval issues

* dashboard: fix github alerts

* dashboard: run go generate

Updates to match EIP1767

* swarm/pss: fixed bug in pss.process, test added

* swarm/pss: test case updated

* swarm/pss: WaitTillSnapshotRecreated() func added

* swarm/pss: snapshot test updated

* swarm/pss: WaitTillSnapshotLoaded() fixed

* swarm/pss: gofmt applied

* swarm/pss: refactoring, file renamed

* swarm/pss: input data fixed

* swarm/pss: race condition fixed

* swarm/pss: test timeout increased

* swarm/pss: eliminated the global variables

* swarm/pss: tests added

* swarm/pss: comments added

* swarm/pss: comment fixed

* swarm/pss: refactored according to review

* swarm/pss: style fix

* swarm/pss: increased timeout

* swarm/api, swarm/network, p2p/simulations: Prerequisites for handshake remove

* swarm, p2p: Add full sim node configs for protocoltester

* swarm/network: Make stream package pass tests

* swarm/network: Extract peer and addr types out of protocol file

* p2p, swarm: Make p2p/protocols tests pass + rename types.go

* swarm/network: Deactivate ExecAdapter test until binary ENR prep

* swarm/api: Remove comments

* swarm/network: Uncomment bootnode record load

* cmd/swarm: dont connect to bootnodes in tests

* cmd/utils: check for empty string when parsing enode

* cmd, core, eth, trie: get rid of trie cache generations

* core, trie: get rid of remainder of cache gen boilerplate

bind: Static byte arrays should be right-padded

Per https://solidity.readthedocs.io/en/v0.5.3/abi-spec.html:

"bytes<M>: enc(X) is the sequence of bytes in X padded with trailing zero-bytes to a length of 32 bytes"

graphql: fix typo in file name

* dashboard, p2p: visualize peers

* dashboard: change scale to green to red

core: use headers only where blocks are unnecessary

README: Mention go 1.10 as minumum - context #19246

ethdb: tiny API tidy-up from the database rework pr

* core/vm: remove function call for stack validation from evm runloop

* core/vm: separate gas  calc into static + dynamic

* core/vm: optimize push1

* core/vm: reuse pooled bigints for ADDRESS, ORIGIN and CALLER

* core/vm: use generic error message for jump/jumpi, to avoid string interpolation

* testdata: fix tests for new error message

* core/vm: use 64-bit memory calculations

* core/vm: fix error in memory calculation

* core/vm: address review concerns

* core/vm: avoid unnecessary use of big.Int:BitLen()

* swarm/storage/localstore: most basic database

* swarm/storage/localstore: fix typos and comments

* swarm/shed: add uint64 field Dec and DecInBatch methods

* swarm/storage/localstore: decrement size counter on ModeRemoval update

* swarm/storage/localstore: unexport modeAccess and modeRemoval

* swarm/storage/localstore: add WithRetrievalCompositeIndex

* swarm/storage/localstore: add TestModeSyncing

* swarm/storage/localstore: fix test name

* swarm/storage/localstore: add TestModeUpload

* swarm/storage/localstore: add TestModeRequest

* swarm/storage/localstore: add TestModeSynced

* swarm/storage/localstore: add TestModeAccess

* swarm/storage/localstore: add TestModeRemoval

* swarm/storage/localstore: add mock store option for chunk data

* swarm/storage/localstore: add TestDB_pullIndex

* swarm/storage/localstore: add TestDB_gcIndex

* swarm/storage/localstore: change how batches are written

* swarm/storage/localstore: add updateOnAccess function

* swarm/storage/localhost: add DB.gcSize

* swarm/storage/localstore: update comments

* swarm/storage/localstore: add BenchmarkNew

* swarm/storage/localstore: add retrieval tests benchmarks

* swarm/storage/localstore: accessors redesign

* swarm/storage/localstore: add semaphore for updateGC goroutine

* swarm/storage/localstore: implement basic garbage collection

* swarm/storage/localstore: optimize collectGarbage

* swarm/storage/localstore: add more garbage collection tests cases

* swarm/shed, swarm/storage/localstore: rename IndexItem to Item

* swarm/shed: add Index.CountFrom

* swarm/storage/localstore: persist gcSize

* swarm/storage/localstore: remove composite retrieval index

* swarm/shed: IterateWithPrefix and IterateWithPrefixFrom Index functions

* swarm/storage/localstore: writeGCSize function with leveldb batch

* swarm/storage/localstore: unexport modeSetRemove

* swarm/storage/localstore: update writeGCSizeWorker comment

* swarm/storage/localstore: add triggerGarbageCollection function

* swarm/storage/localstore: call writeGCSize on DB Close

* swarm/storage/localstore: additional comment in writeGCSizeWorker

* swarm/storage/localstore: add MetricsPrefix option

* swarm/storage/localstore: fix a typo

* swamr/shed: only one Index Iterate function

* swarm/storage/localstore: use shed Iterate function

* swarm/shed: pass a new byte slice copy to index decode functions

* swarm/storage/localstore: implement feed subscriptions

* swarm/storage/localstore: add more subscriptions tests

* swarm/storage/localsore: add parallel upload test

* swarm/storage/localstore: use storage.MaxPO in subscription tests

* swarm/storage/localstore: subscription of addresses instead chunks

* swarm/storage/localstore: lock item address in collectGarbage iterator

* swarm/storage/localstore: fix TestSubscribePull to include MaxPO

* swarm/storage/localstore: improve subscriptions

* swarm/storage/localstore: add TestDB_SubscribePull_sinceAndUntil test

* swarm/storage/localstore: adjust pull sync tests

* swarm/storage/localstore: remove writeGCSizeDelay and use literal

* swarm/storage/localstore: adjust subscriptions tests delays and comments

* swarm/storage/localstore: add godoc package overview

* swarm/storage/localstore: fix a typo

* swarm/storage/localstore: update package overview

* swarm/storage/localstore: remove repeated index change

* swarm/storage/localstore: rename ChunkInfo to ChunkDescriptor

* swarm/storage/localstore: add comment in collectGarbageWorker

* swarm/storage/localstore: replace atomics with mutexes for gcSize and tests

* swarm/storage/localstore: protect addrs map in pull subs tests

* swarm/storage/localstore: protect slices in push subs test

* swarm/storage/localstore: protect chunks in TestModePutUpload_parallel

* swarm/storage/localstore: fix a race in TestDB_updateGCSem defers

* swarm/storage/localstore: remove parallel flag from tests

* swarm/storage/localstore: fix a race in testDB_collectGarbageWorker

* swarm/storage/localstore: remove unused code

* swarm/storage/localstore: add more context to pull sub log messages

* swarm/storage/localstore: BenchmarkPutUpload and global lock option

* swarm/storage/localstore: pre-generate chunks in BenchmarkPutUpload

* swarm/storage/localstore: correct useGlobalLock in collectGarbage

* swarm/storage/localstore: fix typos and update comments

* swarm/storage/localstore: update writeGCSize comment

* swarm/storage/localstore: global batch write lock

* swarm/storage/localstore: remove global lock option

* swarm/storage/localstore: simplify DB.Close

dummyHook's fields were concurrently written by nodes and read by
the test. The simplest solution is to protect all fields with a mutex.

Enable: TestMultiplePeersDropSelf, TestMultiplePeersDropOther as they
seemingly accidentally stayed disabled during a refactor/rewrite
since 1836366a.

resolves ethersphere/go-ethereum#1286

* swarm/storage: add comparison towards leveldb.ErrNotFound

* swarm/storage: wrap leveldb ErrNotFound

* swarm/network: propagate span with ctx

* swarm/network: try to stop stream.send.request spans on time

* swarm/storage: add chunk ref as a log to netstore.fetcher span