* not climate

* explain the intent of the bool in the unsigned phase

* remove glob imports from unsigned.rs

* add OffchainRepeat parameter to ElectionProviderMultiPhase

* migrate core logic from #7976

This is a much smaller diff than that PR contained, but I think
it contains all the essentials.

* improve formatting

* fix test build failures

* cause test to pass

* Apply suggestions from code review

Co-authored-by: Kian Paimani <[email protected]>

* collapse imports

* threshold acquired directly within try_acquire_offchain_lock

* add test of resubmission after interval

* add test that ocw can regenerate a failed cache when resubmitting

* ensure that OCW solutions are of the correct round

This should help prevent stale cached solutions from persisting
past the election for which they are intended.

* add test of pre-dispatch round check

* use `RawSolution.round` instead of redundantly externally

* unpack imports

Co-authored-by: Kian Paimani <[email protected]>

* rename `OFFCHAIN_HEAD_DB` -> `OFFCHAIN_LOCK`

* rename `mine_call` -> `mine_checked_call`

* eliminate extraneous comma

* check cached call is current before submitting

* remove unused consts introduced by bad merge.

Co-authored-by: Guillaume Thiolliere <[email protected]>

* resubmit when our solution beats queued solution

* clear call cache if solution fails to submit

* use local storage; clear on ElectionFinalized

* Revert "use local storage; clear on ElectionFinalized"

This reverts commit 4b46a9388532d0c09b337dc7c7edf76044a6cee8.

* BROKEN: try to filter local events in OCW

* use local storage; simplify score fetching

* fix event filter

* mutate storage instead of setting it

* StorageValueRef::local isn't actually implemented yet

* add logging for some events of interest in OCW miner

* rename kill_solution -> kill_ocw_solution to avoid ambiguity

* defensive err instead of unreachable given unreachable code

* doc punctuation

Co-authored-by: Kian Paimani <[email protected]>

* distinguish miner errors between "out of date" and "call invalid"

* downgrade info logs -> debug

* ensure encoded call decodes as a call

* fix semantics of validation of pre-dispatch failure for wrong round

* move score check within `and_then`

* add test that offchain workers clear their cache after election

* ensure that bad ocw submissions are not retained for resubmission

* simplify fn ocw_solution_exists

* add feasibility check when restoring cached solution

should address https://github.com/paritytech/substrate/pull/8290/files#r617533358

restructures how the checks are sequenced, which simplifies legibility.

* simplify checks again

Co-authored-by: Kian Paimani <[email protected]>
Co-authored-by: Guillaume Thiolliere <[email protected]>

* Removed can_report api from OnOffenceHandler

* Removed DeferredOffences and create a storage migration

* Removed missing comments

* Mock set_deferred_offences and deferred_offences methods

* OnOffenceHandler::on_offence always succeed

* Fix benchmark tests

* Fix runtime-benchmark cfg methods

* Removed 'applied' attribute from Offence event

* refactor deprecated deferred offences getter

* Validate if offences are submited after on_runtime_upgrade

* update changelog

* Remove empty lines

* Fix remove_deferred_storage weights

* Remove Offence::on_runtime_upgrade benchmark

* Revert CHANGELOG.md update

* Deprecate DeferredOffenceOf type

* Update copyright

Co-authored-by: Kian Paimani <[email protected]>

* Add migration logs

Co-authored-by: Kian Paimani <[email protected]>

* Fix migration log

* Remove unused import

* Add migration tests

* rustfmt

* use generate_storage_alias! macro

* Refactor should_resubmit_deferred_offences test

* Replace spaces by tabs

* Refactor should_resubmit_deferred_offences test

* Removed WeightSoftLimit

* Removed WeightSoftLimit from tests and mocks

* Remove unused imports

* Apply suggestions from code review

Co-authored-by: Kian Paimani <[email protected]>

* bounded treasury approvals

* update benchmarks

* update configs

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_treasury --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/treasury/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* fix weight param

Co-authored-by: Parity Benchmarking Bot <[email protected]>

* All done

* Fix benchmarks

* Apply suggestions from code review

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Fix metadata.

* Fix build

* Add migrations

* Fix

* Update frame/elections-phragmen/src/migrations/v4.rs

* Better migeation test

* More test

* Fix warn

* Update frame/elections-phragmen/src/lib.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Fix test

* early exit

* Fix

* Fix build

Co-authored-by: Guillaume Thiolliere <[email protected]>

* impl Zero and One for fixed point numbers

* update librocksdb-sys to support M1

* fix build

* trigger CI

* Authority-discovery no longer publishes non-global IP addresses

* Cargo.lock

* Update client/authority-discovery/src/lib.rs

Co-authored-by: Andronik Ordian <[email protected]>

Co-authored-by: Andronik Ordian <[email protected]>

* Update to libp2p 0.37

* Line widths

* Fix tests

* Add benchmakrs for membership

* Update frame/membership/src/lib.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Make it all work

* Add mock weights

* Update frame/membership/src/lib.rs

* Update frame/membership/src/lib.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_membership --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/membership/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_membership --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/membership/src/weights.rs --template=./.maintain/frame-weight-template.hbs

Co-authored-by: Guillaume Thiolliere <[email protected]>
Co-authored-by: Parity Benchmarking Bot <[email protected]>

* Remove `serde` requirement from FRAME macros

Currently there is some implicit requirement on `serde` being present in
the `Cargo.toml` of a pallet when `GenesisConfig` is used. This pr
removes this requirement by using the serde attribute `serde(crate = "..")`.

* build a unique reexport of serde in impl_opaque_keys, by abusing paste doc concatenation

* Optimize

Co-authored-by: thiolliere <[email protected]>

* Introduce a "dynamic" block size limit for proposing

This adds support for using a dynamic block size limit per call to
`propose`. This is required for Cumulus/Parachains to always use stay in
the limits of the maximum allowed PoV size.

As described in the docs, the block limit is only checked in the process
of pushing transactions. As we normally do some other operations in
`on_finalize`, it can happen that the block size still grows when there
is some proof being collected (as we do for parachains). This means,
that the given block limit needs to be rather conservative on the actual
value and should not be the upper limit.

* Update client/basic-authorship/src/basic_authorship.rs

Co-authored-by: Andronik Ordian <[email protected]>

* More future proof encoded size updating

* Use `ProofRecorderInner`

* Update client/basic-authorship/src/basic_authorship.rs

Co-authored-by: André Silva <[email protected]>

* Update client/basic-authorship/src/basic_authorship.rs

Co-authored-by: André Silva <[email protected]>

* Update client/basic-authorship/src/basic_authorship.rs

Co-authored-by: André Silva <[email protected]>

* Update client/consensus/slots/src/lib.rs

Co-authored-by: André Silva <[email protected]>

* Update client/consensus/slots/src/slots.rs

Co-authored-by: André Silva <[email protected]>

* Update client/basic-authorship/src/basic_authorship.rs

Co-authored-by: André Silva <[email protected]>

* Update client/basic-authorship/src/basic_authorship.rs

Co-authored-by: André Silva <[email protected]>

* Update client/basic-authorship/src/basic_authorship.rs

Co-authored-by: André Silva <[email protected]>

Co-authored-by: Andronik Ordian <[email protected]>
Co-authored-by: André Silva <[email protected]>

Co-authored-by: Guillaume Thiolliere <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>

* contracts: Add RPC that allows instantiating of a contract

* Encode `debug_message` as bytes because usage of `String` is forbidden

* Remove erroneous derive attribute

* Fix rpc tests for new `debug_message` encoding

* Fix typo

Co-authored-by: Andrew Jones <[email protected]>

Co-authored-by: Andrew Jones <[email protected]>

* `ModuleId` to `PalletId` - part of #8372

* fix doc

* move `PalletId` to `frame-support`

* fix compile

* fix tests

* `ModuleId` to `PalletId`

* subcommand `moduleid` to `palletid`

* bump scale-codec in test runner

* refactor config

* Update test-utils/test-runner/Cargo.toml

Co-authored-by: Andronik Ordian <[email protected]>

* bump cargo.lock

* add reasonable defaults

Co-authored-by: Andronik Ordian <[email protected]>

* Remove node-runtime dependency from node-rpc.

The node-runtime dependency is not used and increases build times.

* update Cargo.lock

* add more notes on changing epoch duration

* add note about changing slot duration

* Add nominators option to chain-spec-builder

* Update bin/utils/chain-spec-builder/src/main.rs

Co-authored-by: Bastian Köcher <[email protected]>

Co-authored-by: Bastian Köcher <[email protected]>

* Introduce OnSetCode type into system config trait.

* Docs.

* Fixes

* Fixes

* Make grandpa work

* Introduce `SharedData`

* Add test and fix bugs

* Switch to `SharedData`

* Make grandpa tests working

* More Babe work

* Make it async

* Fix fix

* Use `async_trait` in sc-consensus-slots

This makes the code a little bit easier to read and also expresses that
there can always only be one call at a time to `on_slot`.

* Make grandpa tests compile

* More Babe tests work

* Fix network test

* Start fixing service test

* Finish service-test

* Fix sc-consensus-aura

* Fix fix fix

* More fixes

* Make everything compile *yeah*

* Fix build when we have Rust 1.51

* Update client/consensus/common/src/shared_data.rs

Co-authored-by: André Silva <[email protected]>

* Update client/consensus/common/src/shared_data.rs

Co-authored-by: André Silva <[email protected]>

* Update client/consensus/common/src/shared_data.rs

Co-authored-by: André Silva <[email protected]>

* Update client/consensus/common/src/shared_data.rs

Co-authored-by: André Silva <[email protected]>

* Update client/consensus/common/src/shared_data.rs

Co-authored-by: André Silva <[email protected]>

* Update client/consensus/babe/src/tests.rs

Co-authored-by: André Silva <[email protected]>

* Update client/consensus/babe/src/tests.rs

Co-authored-by: André Silva <[email protected]>

* Fix warning

Co-authored-by: André Silva <[email protected]>

This is not really required and having a special `test-helpers` feature
is a bad idea anyway.

* Reservable, Transferrable Fungible(s), plus adapters.

* Repot into new dir

* Imbalances for Fungibles

* Repot and balanced fungible.

* Clean up names and bridge-over Imbalanced.

* Repot frame_support::trait. Finally.

* Make build.

* Docs

* Good errors

* Fix tests. Implement fungible::Inspect for Balances.

* Implement additional traits for Balances.

* Revert UI test "fixes"

* Fix UI error

* Fix UI test

* More work on fungibles

* Fixes

* More work.

* Update lock

* Make fungible::reserved work for Balances

* Introduce Freezer to Assets, ready for a reserve & locks pallet. Some renaming/refactoring.

* Cleanup errors

* Imbalances working with Assets

* Test for freezer.

* Grumbles

* Grumbles

* Fixes

* Extra "side-car" data for a user's asset balance.

* Fix

* Fix test

* Fixes

* Line lengths

* Comments

* Update frame/assets/src/tests.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Update frame/support/src/traits/tokens/fungibles.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Update frame/assets/src/lib.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Update frame/support/src/traits/tokens/fungible.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Introduce `transfer_reserved`

* Rename fungible Reserve -> Hold, add flag structs

* Avoid the `melted` API - its too complex and gives little help

* Repot Assets pallet

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Shawn Tabrizi <[email protected]>

* make types within `generate_solution_type` macro explicit

Closes #8444.

Just changes the parsing logic for that macro; does not change any
emitted code. The associated types associated with the macro now
require explicit, keyword-style declaration.

**Old**:

```rust
sp_npos_elections::generate_solution_type!(
	#[compact]
	pub struct TestCompact::<VoterIndex, TargetIndex, PerU16>(16)
);
```

**New**:

```rust
sp_npos_elections::generate_solution_type!(
	#[compact]
	pub struct TestCompact::<VoterIndex = VoterIndex, CandidateIndex = TargetIndex, Accuracy = PerU16>(16)
);
```

* un-ignore doc-tests

* use new form in bin/node/runtime/

* rename CandidateIndex -> TargetIndex

* add tests demonstrating some potential compile failures

* Base features and traits.

* pallet and unsigned phase

* Undo bad formattings.

* some formatting cleanup.

* Small self-cleanup.

* Make it all build

* self-review

* Some doc tests.

* Some changes from other PR

* Fix session test

* Update Cargo.lock

* Update frame/election-provider-multi-phase/src/lib.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Some review comments

* Rename + make encode/decode

* Do an assert as well, just in case.

* Fix build

* Update frame/election-provider-multi-phase/src/unsigned.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Las comment

* fix staking fuzzer.

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_election_provider_multi_phase --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/election-provider-multi-phase/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* Add one last layer of feasibility check as well.

* Last fixes to benchmarks

* Some more docs.

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_election_provider_multi_phase --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/election-provider-multi-phase/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_election_provider_multi_phase --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/election-provider-multi-phase/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* Some nits

* It all works

* Some self cleanup

* Update frame/staking/src/lib.rs

Co-authored-by: Peter Goodspeed-Niklaus <[email protected]>

* remove most todos.

* Round of self-review.

* Fix migration

* clean macro

* Revert wrong merge

* Make the number of nominations configurable

* Self reivew

* renmae.

Co-authored-by: Shawn Tabrizi <[email protected]>
Co-authored-by: Guillaume Thiolliere <[email protected]>
Co-authored-by: Parity Benchmarking Bot <[email protected]>
Co-authored-by: Peter Goodspeed-Niklaus <[email protected]>

* Update to libp2p-0.36

* Some more Cargo.lock updates.

* Make candidate intake in society configurable

* Update frame/society/src/lib.rs

* fix fix

* contracts: Remove types and storage from the public interface

* contracts: Remove current_schedule() getter

* contracts: Improve documentation

* Update README.md

* Fix integration test

* Fungibles trait and impl for Assets pallet

* Comment & whitespace

* Fixes

* Fix up CI/CD for the new labels.

* New labels.

* Fix labels

* Fix labels

* Whitespace

* Bump impl version.

* Fix accidental change

* Fixes

* Questionable fix.

* Better benchmark

* Base features and traits.

* pallet and unsigned phase

* Undo bad formattings.

* some formatting cleanup.

* Small self-cleanup.

* Make it all build

* self-review

* Some doc tests.

* Some changes from other PR

* Fix session test

* Update Cargo.lock

* Update frame/election-provider-multi-phase/src/lib.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Some review comments

* Rename + make encode/decode

* Do an assert as well, just in case.

* Fix build

* Update frame/election-provider-multi-phase/src/unsigned.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* Las comment

* fix staking fuzzer.

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_election_provider_multi_phase --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/election-provider-multi-phase/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* Add one last layer of feasibility check as well.

* Last fixes to benchmarks

* Some more docs.

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_election_provider_multi_phase --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/election-provider-multi-phase/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_election_provider_multi_phase --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/election-provider-multi-phase/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* Some nits

* It all works

* Some self cleanup

* Update frame/staking/src/lib.rs

Co-authored-by: Peter Goodspeed-Niklaus <[email protected]>

* remove most todos.

* Round of self-review.

* Fix migration

* clean macro

* Revert wrong merge

* remove fuzzer stuff.

* Self review

* Update frame/staking/src/lib.rs

Co-authored-by: Guillaume Thiolliere <[email protected]>

* review comments

* add logs

* Add tests to demonstrate the capacity of the snapshot.

* Replace upgrade

* Last touches

* Fix benchmakrs

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_staking --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/staking/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_election_provider_multi_phase --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/election-provider-multi-phase/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* remove unused stuff

* Fix tests.

Co-authored-by: Shawn Tabrizi <[email protected]>
Co-authored-by: Guillaume Thiolliere <[email protected]>
Co-authored-by: Parity Benchmarking Bot <[email protected]>
Co-authored-by: Peter Goodspeed-Niklaus <[email protected]>

* Use 'Pallet' struct in construct_runtime.

* Fix genesis and metadata macro.

* Fix 'Pallet' type alias.

* Replace 'Module' with 'Pallet' for all construct_runtime use cases.

* Replace more deprecated 'Module' struct.

* Bring back AllModules and AllPalletsWithSystem type, but deprecate them.

* Replace deprecated 'Module' struct from merge master.

* Minor fix.

* Fix UI tests.

* Revert UI override in derive_no_bound.

* Fix more deprecated 'Module' use from master branch.

* Fix more deprecated 'Module' use from master branch.

* Update diener to enable polkadot companions that use new crates

Diener will be updated in the CI image to make it possible to have
companions that add new crates from Substrate.

Besides that the wasm-bindgen is updated, because `0.2.70` is not
available anymore on crates.io.

* update lock

Co-authored-by: kianenigma <[email protected]>

* Initial abstraction

* Alter rest of APIs

* Fixes

* Some extra getters in Gilt pallet.

* Refactor Gilt to avoid u128 conversions

* Simplify and improve pow in per_things

* Add scalar division to per_things

* Renaming from_fraction -> from_float, drop _approximation

* Fixes

* Fixes

* Fixes

* Fixes

* Make stuff build

* Fixes

* Fixes

* Fixes

* Fixes

* Update .gitignore

Co-authored-by: Kian Paimani <[email protected]>

* Update frame/gilt/src/lib.rs

Co-authored-by: Kian Paimani <[email protected]>

* Update frame/gilt/src/mock.rs

Co-authored-by: Kian Paimani <[email protected]>

* Fixes

* Fixes

* Fixes

Co-authored-by: Shawn Tabrizi <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>

* frame-support: add method to estimate current session progress

* im-online: use EstimateNextSessionRotation trait to delay heartbeats

* node: fix im-online pallet instantiation

* frame-support: fix docs

* frame: fix tests

* pallet-session: last block of periodic session means 100% session progress

* pallet-session: add test for periodic session progress

* pallet-babe: fix epoch progress and add test

* frame-support: return weight with session estimates

* pallet-im-online: add test for session progress logic

polkadot companion: paritytech/polkadot#2535

* more clear randomness API for BABE

* babe: move randomness utilities to its own file

* node: use babe::RandomnessFromOneEpochAgo in random_seed implementation

* frame-support: annotate randomness trait with block number

* pallet-randomness-collective-flip: fix for new randomness trait

* pallet-society: fix randomness usage

* pallet-lottery: fix randomness usage

* pallet-contracts: fix randomness usage

* pallet-babe: fix randomness usage

we need to track when the current and previous epoch started so that we
know the block number by each existing on-chain was known

* node: fix random_seed

* node-template: fix random_seed

* frame-support: extend docs

* babe: add test for epoch starting block number tracking

* babe: fix epoch randomness docs

* frame: add todos for dealing with randomness api changes

Co-authored-by: André Silva <[email protected]>

* Add MMR custom RPC.

* Change RuntimeApi to avoid hardcoding leaf type.

* Properly implement the new RuntimeAPI and wire up RPC.

* Extract Offchain DB as separate execution extension.

* Enable offchain DB access for offchain calls.

* Fix offchain_election tests.

* Skip block initialisation for proof generation.

* Fix integration test setup.

* Fix offchain tests. Not sure how I missed them earlier 🤷.

* Fix long line.

* One more test missing.

* Update mock for multi-phase.

* Address review grumbbles.

* Address review grumbles.

* Fix line width of a comment

* Make changes

* Add serialize/deserialize, copy babe epoch config defaults from node runtime

* Fix line widths and turn default features off for serde

* Remove ser/deser from Epoch, fix node-cli

* Apply suggestions

* Add comment to BABE_GENESIS_EPOCH_CONFIG in bin

* Apply suggestions

* Add a sketchy migration function

* Add a migration test

* Check for PendingEpochConfigChange as well

* Make epoch_config in node-cli

* Move updating EpochConfig out of the if

* Fix executor tests

* Calculate weight for add_epoch_configurations

* Fix babe test

* Apply suggestions from code review

Co-authored-by: André Silva <[email protected]>

* Add more asserts to tests, remove unused changes to primitives/slots

* Allow setting the migration pallet prefix

* Rename to BabePalletPrefix

Co-authored-by: André Silva <[email protected]>

* Introduce new concept of "slot portion for proposing"

Currently when building a block we actually give the proposer all of the
time in the slot, while this is wrong. The slot is actually split in at
least two phases proposing and propagation or in the polkadot case into
three phases validating pov's, proposing and propagation. As we don't
want to bring that much polkadot concepts into Substrate, we only
support splitting the slot into proposing and propagation. The portion
can now be passed as parameter to AuRa and BABE to configure this value.
However, this slot portion for propagation doesn't mean that the
proposer can not go over this limit. When we miss slots we still apply
the lenience factor to increase the proposing time, so that we have
enough time to build a heavy block.

Besides all what was said above, this is especially required for
parachains. Parachains have a much more constraint proposing window.
Currently the slot duration is at minimum 12 seconds, but we only have
around 500ms for proposing. So, this slot portion for proposing is
really required to make it working without hacks.

* Offgit feedback

* Cast cast cast

* IgnoredIssuance

* Fixes

* Fixes