* Init epoch changes module

* Initial integration of new epoch changes module for BABE

* Fix all initial compile errors

* rename: digest -> digests

* Fix babe tests

* Bump impl_version

* Fix more test issues

* Remove test flag for tree

It unfortunately won't work for multiple crates.

* Update cargo lock

* Fix duplicate parking_lot version

* Add missing license header

* build for pre-tags

* shallow clone rustdocs

* FreeingBumpAllocator: Initialize the heads to `u32::max_value()`

`self.heads` can point to an element with the index `0` in the heap.
This would make the allocator fail to reuse this element.

* Simplify the `PREFIX_SIZE` handling

These are a few changes I missed during the refactoring.

1. Initialization issue and boilerplate

    Most importantly: part of the `Configuration` initialization was done in `sc_cli::init`. This means the user can not benefit from this initialization boilerplate if they have multiple `Configuration` since `sc_cli::init` can only be called once.

2. Boilerplate for `VersionInfo` and `Configuration`

    I'm also answering to the critic of @bkchr on the initialization using version: https://github.com/paritytech/substrate/pull/4692/files/bea809d4c14a2ede953227ac885e3b3f9771c548#r372047238 This will allow initializing a `Configuration` and provide the version by default.

3. Loading the `chain_spec` explicitly

    In the past it was done automatically but in some cases we want to delay this. I moved the code to `Configuration.load_spec()` so it can be called later on. `chain_spec` can also be written directly to the `Configuration` without using this `load_spec` helper.

4. [deleted]

5. Fixing issue that prevents the user to override the port

    In the refactoring I introduced a bug by mistake that could potentially prevent the CLI user to override the ports if defaults where provided for these ports (only on cumulus).

6. Change task_executor from Box to Arc

    This is useful for cumulus where we have 2 nodes with 2 separate Configuration that need to spawn tasks to the same runtime.

7. Renamed TasksExecutorRequired to TaskExecutor

    For consistency.

This is related to https://github.com/paritytech/cumulus/issues/24

This is the continuation (and hopefully the end of) #4692 

* Fix memory leak in runtime interface

We used `slice::from_raw_parts` in runtime-interface which did not free
the memory afterwards. This pr changes it to `Vec::from_raw_parts` to
make sure `drop` is called properly and the values are freed.

* Check that `len` is non-zero

* Adds comment

* Restructure node-template so it is clear that node, runtime, and pallets are separated
* Separating to mock and tests
* restructuring runtime to top-level
* updated release script
* updated Cargo.lock

* node: disable grandpa automatic finality fallback

* node: bump spec_version

* Don't require `store` and `store_mut` in `SandboxCapabilities`.

* Simplify the sandbox a bit

* Merge branch 'gav-split-balanecs-vesting' into gav-upsub

# Conflicts:
#	Cargo.lock
#	cli/Cargo.toml
#	collator/Cargo.toml
#	primitives/Cargo.toml
#	runtime/common/Cargo.toml
#	runtime/common/src/claims.rs
#	runtime/kusama/Cargo.toml
#	runtime/polkadot/Cargo.toml
#	service/Cargo.toml

* Update client/src/client.rs

* Update client/src/client.rs

* Fix merge conflict

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

* Remove usage of unneeded Rust feature core_intrinsics

* core::intrinsics::abort -> arch::wasm32::unreachable

* Don't publish `core::intrinsics`.

* Disable panic_handler and alloc_error_handler for no_std non wasm builds

* Print an error if listener is closed

* Oops, forgot to commit this

* pallet-evm: log created address

* Bump spec_version

* Only emit Created event when ExitReason is Succeed

Hopefully this can be merged if the tests pass.

When messing with the signature, we need to make sure that we acutally
mess-up the signature. As the generated private/public key is random,
the signature is random as well. It can happen that `bytes[0] ==
bytes[2]` which makes the test fail. We fix this problem by just
inverting the bytes at `0` and `2`.

* Added GetCallMetadata for extrinsic calls.

Co-Authored-By: Bastian Köcher <[email protected]>

* Improved test for outer call metadata.

* fixed review comments

* removed dead code

* fixed review suggestions

* Update frame/support/src/dispatch.rs

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

* add storage_getNextKey

* RPC storage_getKeysPages

* respect count

* use iterator

* improve

* add tests

* improve

* add doc comments

* Make prefix optional

* update error

* improve

* Fix call to backend in child_storage_hash

* child storage test.

This will hopefully reduce merge conflicts in the future

* block_import: switch to Box<dyn Any> for intermediates representation

* Use Cow and return Error instead of Option

* Remove unused error

* Distinguish NoIntermediate/InvalidIntermediate

This pulls in the latest release of *ring* and also removes some
duplicate dependencies.

* Introduce vesting to node, debug message for upgrades and fix them

* Bump spec version

* fork-tree: add support for find_node_mut_where

* Update utils/fork-tree/src/lib.rs

Co-Authored-By: Bastian Köcher <[email protected]>

* Update utils/fork-tree/src/lib.rs

Co-Authored-By: Bastian Köcher <[email protected]>

* Update utils/fork-tree/src/lib.rs

Co-Authored-By: Bastian Köcher <[email protected]>

* Fix calling name

* Update utils/fork-tree/src/lib.rs

Co-Authored-By: Robert Habermeier <[email protected]>

* doc: be precise what is "least significant" index

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

* Initially scoping out of the problem

* Remove need for exiry in balance locks.

* Remove expiry from locks.

* Remove supefluous balance test

* Amalgamate pieces of balance module

* Split out vesting

* Fix tests

* Fixes for vesting.

* Docs.

* Weight docs.

* Refactor things in terms of set_balances.

* Switch out ED to be free + reserved.

* Remove on_free_balance_zero and some docs.

* Build fixes

* Update frame/vesting/src/lib.rs

Co-Authored-By: Xiliang Chen <[email protected]>

* Update frame/vesting/src/lib.rs

Co-Authored-By: Xiliang Chen <[email protected]>

* Migration

* Remove superfluous code.

* Test fixes

* Fix some tests

* Fix repatriate reserve

* Fixes

* Add test for migration

* Final cleanups

* Fix

* Indentation.

* Undo unneeded referencing

* Bump runtime version

* Fixes

Co-authored-by: Xiliang Chen <[email protected]>

* increase limits, improve logging

* format in kB

* client/finality-grandpa: Add regression test observer polling network

Ensure `Future` implementation of `ObserverWork` is polling its
`NetworkBridge`. Regression test for bug introduced in d9837d7d and
fixed in 504b4e89

.

When polled, `NetworkBridge` forwards reputation change requests from
the `GossipValidator` to the underlying `dyn Network`. This test
triggers a reputation change by calling `GossipValidator::validate` with
an invalid gossip message. After polling the `ObserverWork` which should
poll the `NetworkBridge`, the reputation change should be forwarded to
the test network.

* Nits

Co-authored-by: Max Inden <[email protected]>

* Adding Serde:Deserialise to UncheckExtrinsics

to be able to use the ChainApi RPC from the client side

* Update primitives/runtime/src/generic/unchecked_extrinsic.rs

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

* Initial version.

* Fix tests.

* Refactor using StorageValueRef.

* Add tests and apply review suggestions.

* Bump runtime.

Co-authored-by: Gavin Wood <[email protected]>

* Small follow-up docs improvements in rent module

* Update frame/contracts/src/rent.rs

Co-Authored-By: thiolliere <[email protected]>

* Use a shorter version of the sentence

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

* Initial approach

* Introduce the pallet-contracts-common crate

* Add rent::compute_rent_projection

* Wire everything together

* Fix build error.

* Rename EvictionDate → EvictionAt.

* Clean.

* Renaming and cleaning.

* Add documentation for rent_projection RPC.

* Add documentation for rent_projection runtime API.

* Refactor rent_budget.

Merge it with subsistence_treshold.

* Bump impl_version

* Constrain RPC impl with Block::Header::Number.

* Rename pallet-contracts-common into -primitives

* Add a comment for `compute_rent_projection` on the usage

* Small tidying