* implement grandpa client

* consensus gossip with arbitrary topics

* defer GRANDPA messages until referenced blocks imported

* set up communication for voter in a transparent way

* instantiate GRANDPA voter

* keep last round state on disk

* switch back to crates.io finality-grandpa

* update cargo.lock

* use new `collect_garbage` API

* update sync test framework and make public

* test that observers can observe

* fix warning

* use more idiomatic predicate for collecting garbage in gossip

* kill spaces

* fix date

* enhance macro decl_storage()

* update the state root hash

* fix one comment

* Digest::log fn

* change DigestItem::log impl

* compare digest item-by-item

* update comment

Shawn Tabrizi authored Oct 03, 2018 and asynchronous rob committed Oct 03, 2018

* Updating Moment to support Mul/Div with BlockNumber

Issue #261

* Fixed whitespace and commented code

* remove one map implementation in test

* remove one map macro

* remove one map macro

* remove one map macro

* Do not encode the `origin` parameter in the metadata

* Remove obsolete macro

* Encode outer dispatch in metadata

* Global unique subscription ids.

* Fix tests.

* Auxiliary data storage in client backend

* Runtime error handling

* Update BBQ Birch def

* Fix

* Fix `sandbox::Memory` lifecycle for no_std env

* Retain memories in env_def builder and instance

* Add scoped memory creation to test RC semantics

* Add deploying_wasm_contract_should_work test.

* Fix sandboxed memory set function.

* Consensus cleanup

* Fixed DB initialization issue

* Spacing

* Limit gossip for non-authorities

* Random shuffle

* No longer use a channel for custom protocols

* Fix warnings

* Add graceful shutdown and comments

* Minor cleanups

* Add warning if queue goes over threshold

* Increase threshold

* Address grumble

* changes_trie

* changs_trie: continue

* changes_trie: adding tests

* fixed TODO

* removed obsolete ExtrinsicChanges

* encodable ChangesTrieConfiguration

* removed polkadot fle

* fixed grumbles

* ext_storage_changes_root returns u32

* moved changes trie root to digest

* removed commented code

* read storage values from native code

* fixed grumbles

* fixed grumbles

* missing comma

* key changes proof generation + query

* fix grumbles

* check that changes trie config is not changed by block.finalize()

* fixed changes trie config check

The metadata call does not work anymore with JSON and just returns an
opaque blob.

* Started substrate tests

* Sync test

* Test updates

* Improved tests

* Use on-chain block delay

* Parallel test execution

* Otimized tests

* Logging

* Fixed racing test

* Fixed compilation

* Fixed timestamp test

* Removed rlp dependency

* Minor fixes

* Fixed tests

* Removed best_block_id and resolved fdlimit issue

* Whitespace

* Use keyring

* Style

* Added API execution setting

* Removed stale import

* pass correct header column to read_meta again

fixes #826

* make COLUMN_META exist in a single place

* pass COLUMN_META as arg for more consistency with other db utils

* remove unused import

* SS58 addresses in BFT

Closes #590

* Fix wasm compile

* Removes `rlp` dependency

* Enable warnings about unused crates in the CI

* Remove all the unused crates

* Make tests working again