* relay headers between Kusama and Polkadot

* relay messages between Kusama and Polkadot

* complex Kusama <> Polkadot relayer

* expose relayer_fund_account_id from messages pallet

* create relayers fund accounts on Kusama/Polkadot + some more fixes

* fmt

* fix compilation

* compilation + clippy

* compilation

* MAXIMAL_BALANCE_DECREASE_PER_DAY for K<>P header relays

* fmt

* deduplicate tests

* Update modules/messages/src/lib.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* extract storage_parameter_key function

* other grumbles

* fix

* fmt

Co-authored-by: Tomasz Drwięga <[email protected]>

* Add `OnMessageAccepted` config type

* Update actual weight

* Add unit test

* Update weight

* Remove old comment & update wrong test data

* Make ci happy

* Add lane_id param

* update test case

* Make log info more readable

* Use saturating_sub

* Update docs

* integrate token swap pallet into Millau runtime

* set OnDeliveryConfirmed callback in Millau runtime

* I'm just trying to do my job

* spelling

* Rename param in `confirm_delivery`

* Fix typo

* Update comment

* Fix review issue

* get rid of frame_support::traits::Instance usage in messaging

* migrate messages pallet to frame v2

* fix benchmarks

* remove dummy event + add Parameter to metadata

* review

* typo

* Adding BridgedChainId constant to message pallet

* Addressing PR feedback

* fix(spellcheck): test of fixing

* fix(hunspell): improved many typos etc.

* fix(hunspell): all errors solved

* fix(hunspell): extended scope of files - the build should fail

* Return error code.

* Fix spelling, sort dictionary.

* fix(hunspell): added fix to gitlabs check

* fix(typo): one typo and test of verification on github

* fix(typo): one typo

Co-authored-by: Tomasz Drwięga <[email protected]>

* confirm delivery detects when more than expected messages are confirmed

* fix benchmarks compilation

* pre and post dispatch weights of OnDeliveryConfirmed callback

* Update modules/messages/README.md

Co-authored-by: Tomasz Drwięga <[email protected]>

* clippy + compilation

* fix test issue from parallel PR

Co-authored-by: Tomasz Drwięga <[email protected]>

* MessagesInstance -> BridgedMessagesInstance

* Chain::ID -> Bridge::THIS_CHAIN_ID+Bridge::BRIDGED_CHAIN_ID

* FromBridgedChainEncodedMessageCall<B> -> FromBridgedChainEncodedMessageCall<DecodedCall>

* impl Parameter for ()

* copypaste storage_map_final_key to avoid different runtime references/dummy runtimes

* moved dummy runtime from primitives to relay client

* Rococo <> Wococo messages relays

* send R<>W messages using relay

* fmt

* return Result from get_dispatch_info

* fix benchmarks compilation

* clippy

* relay dispatch result flags back to the source chain

* OnMessagesDelivered callback

* add lane id to OnDeliveredMessages callback

* fix benchmarks && upate weights

* clippy

* clippy

* clipy another try

* OnMessagesDelivered -> OnDeliveryConfirmed

* Update primitives/messages/src/source_chain.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

Co-authored-by: Tomasz Drwięga <[email protected]>

* pay dispatch fee at target chain

* refund unspent dispatch weight to messages relayer

* test that transfer actually happens

* pay-at-target-cchain benchmarks + fix previous benchmarks (invalid signature)

* include/exclude pay-dispatch-fee weight from delivery_and_dispatch_fee/delivery tx cost

* remvoe some redundant traces

* enum DispatchFeePayment {}

* typo

* update docs

* (revert removal of valid check)

* Update modules/messages/src/benchmarking.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* Update modules/messages/src/benchmarking.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* Update modules/messages/src/benchmarking.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* Update modules/messages/src/benchmarking.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

Co-authored-by: Tomasz Drwięga <[email protected]>
Co-authored-by: Tomasz Drwięga <[email protected]>

* Bump dependencies

- Substrate to `74a1bfdcc`
- `finality-grandpa` to `0.14.1`
- `fs-swap` to `0.2.6`

* Add `pallet_randomness_collective_flip` to runtimes

* Rename GenesisConfig fields

See Substrate PR: https://github.com/paritytech/substrate/pull/8990

* Missed PoA renames in Rialto GenesisConfig

* Use `spawn_essential_handle` for transaction pool

See Substrate PR: https://github.com/paritytech/substrate/pull/9074

Co-authored-by: Tomasz Drwięga <[email protected]>

* Bump Substrate to commit `0495ead4`

* Derive MaxEncodedLen for MillauHash

* Add new config params to Balances pallet

* Update Millau and Rialto service files

* Add new Config items to mock runtime

* Bump Substrate to `37bb3ae7`

* Update Aura worker params

* updated weight formula for submit_finality_proof

* remove common prefix traces

* update docs

* single benchmark

* Re-generate weights.

* Update delivery transaction limits

Co-authored-by: Tomasz Drwięga <[email protected]>
Co-authored-by: Hernando Castano <[email protected]>

* flag for rejecting all outbound messages

* update weights

* Revert "update weights"

This reverts commit 992b866e.

* Revert "flag for rejecting all outbound messages"

This reverts commit d094964b

.

* OperatingMode

* Update modules/messages/src/lib.rs

Co-authored-by: Hernando Castano <[email protected]>

* Poke CI

* RustFmt

Co-authored-by: Hernando Castano <[email protected]>
Co-authored-by: Hernando Castano <[email protected]>

* CI: do not trust this CI 1

* CI: don't want to trigger unneded statuses

* CI: debug 1

* CI: new CI

* CI: temp allow failure

* CI: exclude paths

* doc: check if docs won't trigger pipelines

* doc: check hybrid changes pipeline

* doc: do not push excluded files together with others

* CI: undebug fmt

* CI: better deny

* CI: fix deny and spellcheck

* CI: global backtrace

* CI: deny config

* CI: publishing

* Dockerfile: metadata fix [skip ci]

* CI: revert me

* CI: debug bash

* CI: mv ci.Dockerfile; fix buildah bug

* CI: fix artifact name

* Dockerfile: fix context

* CI: separate deny check licenses

* CI: when to run

* CI: unneded stuff in these Dockerfiles

* CI: merged test-refs and build-refs

* CI: test-build optimizations

* CI: changes, web, scheduled pipelines now work as intended

* CI: use tested production CI image

* CI: substitute GHA

* Fix clippy.

* Moar clippy fixes.
...

* Insert headers in benchmarks.

* Fix benchmarks.

* Lower number of headers.

* Avoid hardcoding numbers.

* Update weights.

* cargo fmt --all

* Remove todo.

* Fix test.

* Address review comments.

* Fix borrowed value.

* New weights.

* Fix test.

* cargo fmt --all

* Bump Substrate

* Change usage of "Module" to "Pallet"

Related Substrate PR: https://github.com/paritytech/substrate/pull/8372

* Add `OnSetCode` config param

Related Substrate PR: https://github.com/paritytech/substrate/pull/8496

* Update Aura Slot duration time type

Related Substrate PR: https://github.com/paritytech/substrate/pull/8386

* Add `OnSetCode` to mock runtimes

* Add support for multiple justifications

Related Substrate PR: https://github.com/paritytech/substrate/pull/7640

* Use updated justification type in more places

* Make GenesisConfig type non-optional

Related Substrate PR: https://github.com/paritytech/substrate/pull/8275

* Update service to use updated telemetry

Related Substrate PR: https://github.com/paritytech/substrate/pull/8143

* Appease Clippy

* Update copyright date to 2021

* Bump date in license header template

* use runtime:: prefix for message-lane pallet traces

* renamed message-lane (module and primitives) folder into messages

* replace "message lane" with "messages" where appropriate