* Make use of parity-codec "derive" crate feature
* Bump impl_version
* Update wasm files and Cargo.lock files
* Transferred to parity_codec derive feature for the rest of the crates
* Update wasm binaries and lock files
* Update core and node wasm binaries
* Allow runtime to return more detailed transaction validation errors.
* Re-use ApplyError codes and update test-runtime.
* Fix pool tests.
* Revert using Compact for validity.
* 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
* First effort
* API versioning
* Introduce validate_transaction
* Introduce the API plus fixes.
* Docs
* Typo
* Add longevity parameter to transaction validity info.