* Make `on_message` take the message as `&mut Option<_>`
* Make `ConsensusGossip` implement `Specialization`
* Move `new_session` into `ConsensusGossip`
* Adds `construct_simple_protocol` macro for simplifying the creation of protocols
* Make the graph generic.
* Adapting pool API for the graph.
* Merge pool & graph.
* Restructure.
* Fix test of transaction pool.
* Get rid of node/transaction-pool.
* Compilation fixes.
* Test7
* Fix compilation of tests.
* Revert runtime changes.
* Add validate_transaction to test-runtime.
* Fix RPC tests.
* Add clearing of the old transactions.
* Trigger pool events.
* Use new queue API.
* Fix wasm build, re-export Hasher.
* No warning if validate transaction fails.
* Get rid of Into<u64> and use As
* Rename `NewTxQueue` to `TaggedTransactionQueue`
* Remove `BlockBuilder` API and support adding documentation to the API functions
* Adds new `BlockBuilder` API
* Fixes compilation with new `BlockBuilder` API
* Some more cleanup
* Cargo.lock update
* Try to fix on stable
* Add missing `As` imports.
* Adds new API traits that will be used by the client and runtime
* Switch consensus to new API's
* Switches transaction-pool to new API's
* Move runtime api stuff into its own crate
* Adds `impl_apis!` macro for implementing the new API traits
* Make `metadata` return directly a blob
* Runtime replace `impl_stubs!` with `impl_apis!`
* Switches to none feature based approach for declaring the different API traits
* Fixes compilation error
* Fixes errors
* Make the `decl_apis!` trait usable from the outside
* Make the `test-client` use the new API traits
* Remove last `impl_stubs!` bits and move some of them into wasm executor for tests
* A little bit more documentation
* 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
* fatal error when unable to complete
* rename run_voter to run_grandpa
* switch back to crates.io
* do not send OnDemand request to node who, we believe, can't process it
* ignore peers with too old best block on light nodes
* non-weird temporary
* fix condition
* compilation
* 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
* 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
* 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
Pierre Krieger