* Adds start and stop work heartbeats.

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Fix code after suggested changes

* Finalizing stops work on earlier lower blocks.

* Fix func parameter and flaky test

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Make it work

* Upsub

* file structure and initializer skeleton

* ensure session changes happen before initialization

* add a couple tests for initializer flow

* integrate with session handling

* configuration update logic

* configuration methods

* move test mock to its own module

* integrate configuration into initializer

* add note about initialization order

* integrate configuration module into mock

* add some tests for config module

* paras module storage

* implement paras session change operation

* amend past code pruning to fully cover acceptance period

* update guide again

* do pruning of historical validation code

* add weight to initialization

* integrate into mock & leave notes for next session

* clean up un-ended sentence

* alter test to account for double index in past code meta

* port over code-at logic test

* clarify checking for conflicting code upgrades

* add genesis for paras, include in mock, ensure incoming paras are processed

* note on return value of `validation_code_at`

* implement paras routines from implementor's guide

* bring over some existing tests and begin porting

* port over code upgrade tests

* test parachain registration

* test code_at with intermediate block

* fix warnings

* clean up docs and extract to separate struct

* adjust implementor's guide to include replacementtimes

* kill stray println

* rename expected_at to applied_after

* rewrite ParaPastCodeMeta to avoid reversal

* clarify and test interface of validation_code_at

* make FutureCode optional

* rename do_old_code_pruning

* add comment on Option<()> to answer FAQ

* address some more grumbles

* Initial commit

* Licenses, spaces, docs

* Add a spawner

* Watch spawned subsystems with a FuturesUnordered

* Move the types around a bit

* Suggested fixes by Max

* Add a handler to talk to the Overseer

* FromOverseer and ToOverseer msgs and stopping

* Docs and return errors

* Dont broadcast, have add a from field to messages

* Allow communication between subsystems and outside world

* A message with a oneshot to send result example

* Remove leftover can_recv_msg

* Remove from field from messages

* Dont be generic over stuff

* Gather messages with StreamUnordered

* Fix comments and formatting

* More docs fixes and an example

* Apply suggestions from code review

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Fixes from review

Move function from impl block.
Do not panic but resolve with errors if spawner fails or subsystem
resolves.

* Dropping a handler results in a flaky test

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Identity

* Bump spec

* Update runtime/polkadot/src/lib.rs

Co-authored-by: kaichao <kaichaosuna@gmail.com>

* Fix runtime

* Bump runtimes

Co-authored-by: kaichao <kaichaosuna@gmail.com>

* Revert async-std to 1.5.0

* Funny, some part of the Cargo.lock didn't get commited

* Use Substrate block builder.

* Clean up metrics.

* Lock.

* Lock.

* Switch to newest basic authorship interface

* Update Substrate reference and polkadot spec_version

* Let's improve

Co-authored-by: Bastian Köcher <git@kchr.de>

* Bump

* Bump

* Bump

* companion for https://github.com/paritytech/substrate/pull/6132



* Fix more tests

* upsub

* Bump

* Update runtime/common/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* remove cleanup

* Update runtime/westend/src/lib.rs

* Apply suggestions from code review

* Fix build

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Test CC1 spec

* Adaptive default chainspec

* Strip -pre

* Update to next CC1 iteration

* Raw chainspec

* Update claim statements

* Update URLs

* Minor tweak to make enum agree with URL

* final html multihashes

* New hashes

* Version

* updated SAFT statement hash

* Update runtimes; this relies on substrate #6131

* Bump

* Share transaction filterer and fix Kusama

* Warning

* Gah!

* Tidy

* Westend fixes

* Westend fix

* Tweak constants

* Implement TCF stuff

* Fix

* Warning

* 15 minute lookahead

* 15 minute lookahead in Polkadot

* update max transactions

* Enable utility, disable vested_transfer

* Update runtime/common/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Filter calls for validate unsigned also

* Deduplicate

* Fix

* Introduce Polkadot (mainnet) chainspec

* Fix naming.

* Enable indices and fix comment.

* Fix compilation

* Enable indices and fix comment.

* polkadot: babe: enable secondary VRF slots

* Test JSON

* Allow set_heads

* Fix

* Raw chain spec added

Co-authored-by: keorn <github@i.keorn.org>
Co-authored-by: NikVolf <nikvolf@gmail.com>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Tomasz Drwięga <tomasz@parity.io>
Co-authored-by: André Silva <andre.beat@gmail.com>

* Fixed point methods renames.

* Bump

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Gav Wood <gavin@parity.io>

* Update impls.rs

* companion for substrate#6069

* update to latest changes

* Update Cargo.lock

* Bump

Co-authored-by: André Silva <andre.beat@gmail.com>
Co-authored-by: Gav Wood <gavin@parity.io>

* add system to benchmarks

* Update cargo files

* Add new trait to offences

* companion for substrate#6069

* update to latest changes

* Update Cargo.lock

Co-authored-by: André Silva <andre.beat@gmail.com>
Co-authored-by: Gav Wood <gavin@parity.io>

* make council members able to note preimage using operation extirnsic

* Bump

Co-authored-by: Gav Wood <gavin@parity.io>

* Switch from Convert to WeightToFeePolynomial

* Bump

Co-authored-by: Gav Wood <gavin@parity.io>

* Companion to #6067

* Fix tests?

* Use AvailableBlockLimit instead of hardcoding the value.

* Bump substrate.

* add metrics

* reset & update

* update

Enable babe_epochAuthorship that was added in substrate#4729 for
querying information about slots that can be claimed in the current
epoch.

* remove on_block_imported

* remove on_block_imported

Co-authored-by: Gav Wood <gavin@parity.io>

* Introduce mandatory statement signing into claims

* Introduce SignedExtension

* Tests passing

* Bump runtime version

* Bump version, fix test

* Test for validate

* Another couple of tests

* Enable PrevalidateAttests on Polkadot

* Enable PrevalidateAttests on Polkadot

* Fix build

* Fixes

* More fixes

* Fix bench tests

* Fix & test Preclaim clobbering.

* Fix for errant claim logic

* Add test

* Update tests, always use Vec as input

* mint_claim can add signature, some_benchmarks

* Add claim with statement test

* finish benchmarks

* put the correct number of claims with benchmarks

* fix compiler warning

* Update weights

* Weight comments for validation

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

* Companion pr for #6012

* Update `Cargo.lock`

* Update for split weights

* Update `Cargo.lock`

* Bump all `spec_version`s

Co-authored-by: Bastian Köcher <git@kchr.de>

* grandpa: report equivocations on all runtimes

* runtime: fix test-runtime compilation

* runtime: enable historical session manager on all runtimes

* runtime: fix indentation

* runtime: use strong key types in KeyOwnerProofSystem definitions

* update substrate

* bump spec_version of runtimes

* network/src/legacy/gossip: Return bounded channel when testing

* Cargo.lock: Update to current Substrate master

* Companion pr for Substrate #5889

* Update Substrate ref

* Companion PR for Substrate #5375

* fix compilation

* Update rpc/Cargo.toml

* update substrate

Co-authored-by: André Silva <andre.beat@gmail.com>
Co-authored-by: Benjamin Kampmann <ben@gnunicorn.org>

* Companion for Substrate#5860

* Update Substrate

* Update to latest Substrate master

* again