* core: make block justification optional
* runtime: update wasm binaries
* core: optionally pass justification on finalize_block
* finality-grandpa: add channel to trigger authority set changes
this will allow the `BlockImport` to trigger an authority set change when
importing a change block that provides a justification (when syncing)
* finality-grandpa: move finalize_block to free function
* finality-grandpa: add GrandpaOracle for auth set liveness checking
this will be used by `BlockImport` to check whether the authority set for a
given block is still live, if the authority set isn't live then importing a
change block requires a justification.
* finality-grandpa: store justification on finalized transition blocks
* finality-grandpa: check justification on authority set change blocks
* finality-grandpa: poll grandpa liveness oracle every 10 seconds
* finality-grandpa: spawn grandpa oracle in service setup
* core: support multiple subscriptions per consensus gossip topic
* finality-grandpa: create and verify justifications
* finality-grandpa: update to local branch of grandpa
* finality-grandpa: update to finality-grandpa v0.5.0
* finality-grandpa: move grandpa oracle code
* finality-grandpa: fix canonality check
* finality-grandpa: clean up error handling
* finality-grandpa: fix canonical_at_height
* finality-grandpa: fix tests
* runtime: update wasm binaries
* core: add tests for finalizing block with justification
* finality-grandpa: improve validation of justifications
* core: remove unused IncompleteJustification block import error
* core: test multiple subscribers for same consensus gossip topic
* Revert "finality-grandpa: improve validation of justifications"
This reverts commit 51eb2c58c2219801e876af6d6c9371bdd9ff2477.
* finality-grandpa: fix commit validation
* finality-grandpa: fix commit ancestry validation
* finality-grandpa: use grandpa v0.5.1
* finality-grandpa: add docs
* finality-grandpa: fix failing test
* finality-grandpa: only allow a pending authority set change per fork
* finality-grandpa: fix validator set transition test
* CheckInherentError can now report when something would be valid
* set timestamp inherent to next valid block time
* return max timestamp for valid-after when checking
* docs: Remove safe-mix since is no longer local dependency
* docs: Fix existing packages link. Still only includes Substrate Core
* docs: Remove empty package Readmes. Remove old docs links. Rename to Readme
* docs: Remove link to old docs
* misc: Merge latest from master. Renaem to sr-metadata. Fix list of RustDoc package names
* Rename substrate-metadata to sr-metadata, since it is in the "srml" subdirectory
* Change example to use package name that opens all packages in RustDocs
* Fix list of packages names that are available to open in RustDocs
* fix typo
* fix ordering of CLI options and add missing backslash
* Generalize BlockImport
- move ImportBlock, BlockOrigin, ImportResult into shared sr-primitives
- let Consensus provide and traits again
- update consensus traits to latest development
- implement traits on client::Client, test_client::TestClient
- update RHD to use the new import_block API
* Move ImportBlock into consensus-common
* Send import notification in aura tests
* Integrating aura into service
* Make Signatures more generic
* Aura Block Production with the given key
* run aura on the thread pool
* start at exact step start in aura
* Add needed wasm blob, in leiu of better solutions.
* Make API ids consistent with traits and bring upstream for sharing.
* Add decrease_free_balance to Balances module
* Encode `Metadata` once instead of two times
* Bitops include xor
* Upgrade key module.
* Default pages to somewhat bigger.
* Introduce upgrade key into node
* Add `Created` event
André Silva