* Remove InherentsPool.
* Introduce transactions that are not propagated over the network.
* Bump spec version.
* Use separate flag for propagation.
* Fix tests.
* Avoid excessive hashing. Store extrinsic len.
* Implement pool limits.
* Fix issues.
* Make sure we return error in case it doesn't make into the pool.
* Pass parameters from CLI.
* Remove redundant todo.
* Fix tests.
* Reuse tags of known transactions, avoid reimporting extrinsics from imported block.
* Fix tests for graph.
* Add more detailed docs.
* Avoid cloning and computing hashes twice.
* 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