* Make use of parity-codec "derive" crate feature

* Bump impl_version

* Update wasm files and Cargo.lock files

* Transferred to parity_codec derive feature for the rest of the crates

* Update wasm binaries and lock files

* Update core and node wasm binaries

* Clean up session key rotation

* Fix build

* Bump version

* force build closure in decl_storage! to return explicit type
* fix when type was different

Note: it breaks API but it is easy to upgrade: just do the conversion from encode type to the final type yourself in the build closure:

```rust
Encode::using_encoded(&value, |mut value| Decode::decode(&mut v)).unwrap();
```

* First steps to stash/controller separation

* More drafting

* More drafting

* Finish draft.

* Optimisation

* Remove accidental commit

* Make it build.

* Fix linked map for traits.

* Fix Option<_> variant.

*  Improve naming a tad

* Rebuild runtime

* Builds!

* First test.

* Bump RT version

* Minor fix

* Update Mock

* adds the correct reward testcase (+staking eras which was already ok)

* fixes the basic staking testcase to work properly (along with a small fix in the module)

* New logic to avoid controller transferring stash.

* Fix some build issues.

* adding some comments to tests

* Fix impls.

* adds a few more lines to explain the test case

* More fixes.

* gets the basic test up and running again

* Fix rest of build

* Rebuild wasm

* Fix docs.

* fix staking test with new chnages

* updating some tests, pending questions

* More working tests

* adds double staking test

* Docs

* remove invalid slashing test

* Payee stuff.

* Fix build

* Docs

* Fix test

* Fix a couple of tests

* Layout plan for finishing tests before Pragmen

* Add some working tests

* re-build staking and reward tests

* Add more tests

* fix offline grace test

* Nominator should have payee checked for cleanup

* adds more nomination tets

* adds validator prefs tests

* Fix and clean up some TODOs

* Fix a couple of issues

* Fix tests

* noting warnings from tests

* final fix of local tests

* Fix slot_stake bug

* Half baked test

* Add logic to limit `unstake_threshold` set in storage

* Make sure to check before writing!

Almost forgot this one

* Move a couple of comments

* fix last broken slot_stake test

* Ignore broken test

* Update parity-codec/-derive to 3.1

* Update wasm stuff

* fix macro error when no event

* update impl version

* replace some encode by using_encoded

* update runtime

* improve readibility

* fix construct runtime module position

* Update srml/support/src/runtime.rs

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

* Update srml/support/src/runtime.rs

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

* Update srml/support/src/runtime.rs

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

* Update srml/support/src/runtime.rs

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

* Update srml/support/src/runtime.rs

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

* Let StorageDoubleMap use borrowed key types

* Bump impl version

if system wasn't the first module then it crashed

* remove amount associated
* make a new trait to bound some arithmetics to balances or assets:
  It also remove arithmetic bounds of srml-support::traits::Currency.

  To update your code then use srml_support::traits::ArithmeticType like:
  `type Currency: ArithmeticType + Currency<Self::AccountId, Balance=BalanceOf<Self>>; ` 
  with `type BalanceOf<T> = <<T as Trait>::Currency as ArithmeticType>::Type; `

* improve decl_storage when it explicit serde bound: basically don't try to be smarter than rust and just use where clause.

* Fix linked map for traits.

* Fix Option<_> variant.

*  Improve naming a tad

* Rebuild runtime

* Encapsulate private data in the inner module.

* Bump impl version.

* Fix deriving codec in srml-example.

* Fix derivation without importing parity-codec-derive.

* Fix config() for map.

* wip

* Split bytes fee charging and charging by amount into different traits.

* Move to edition 2018.

* Implemented charge fee traits for fees module.

* Implemented 'on_finalise' for fee module.

* Updated fees finalize impl.

* Renaming and documentation update.

* Added overflow & underflow check for fee calculation.

* Added mock and unit tests for fee module.

* More unit tests for fees module.

* Fixed srml-executive unit tests.

* Remove transaction base/bytes fee from balances module, fix unit tests.

* fix compile error

* Fixed unit test.

* Minor fixes.

* Bump spec version.

* Bump spec version.

* Updated fees module and runtime wasm.

* Fees module code style improvement; updated runtime wasm.

* Bump spec and impl version.

* Adding vesting tests to Balances module

* Fix gitlab message, bump impl

* Refactor decl_storage a bit to allow easier impl of linked map.

* A bunch of refactorings for storage generation.

- Rename StorageMap and ChildrenStorageMap to avoid confusion with generator::StorageMap.
- Separate implementation from the procedural macro code to clean it up.
- Make sure that genesis is initialised using the `StorageValue/StorageMap`
  generated implementations instead of going RAW.

* WiP: Writing test.

* Basic implementation.

* Implement enumeration.

* Fix non-std issues.

* fix warning

* Fix test-client.

* Address review grumbles - part 1

* Avoid cloning the key, relax Storage requirements.

* Rebuild runtime.

* Remove dangling todo.

* Add Proposed event.

* Bump and rebuild

Procedural do not support `$crate` to get access to the crate where the
macro is defined. We use a hack to re-export the crate under a known
name. With rust edition 2018, people started to rename their crates in
`Cargo.toml`, but that breaks the re-export. This commit introduces
`proc-maco-crate` that supports finding the requested crate name, even
if it was renamed.

* Vesting.

* Vesting stuff.

* Add new wasm blobs

* Bump runtime version

* Update lock

* Fix tests

* Bump version

* Unify bad signature message.

* Update runtime.

* decouple balances from some module by creating a new traits in support/traits
* improve decl_event

* Add transaction skipping.

* Update runtime.

* Initial fix, need to remove demo

* Fix similar issue with contracts module

* Remove Demo Module for Testing

* Undo changes to Contracts module

instead of ext::Seq

* Expose block random seed and timestamp to contract ABI

* Add tests

* Bump spec version

* Make runtime macros work without required `macro_use`

* Adds node-template

* Adds node-template-release tool

* Fixes building `node-template` and improve the release

* Add `profile.release` by release script to remove warning

* Adds script for releasing the node template

* Fixes compilation after master merge

* Port node-template to edition 2018

* Remove license

* Fixes compilation after master merge

* Add `node-template-release.sh` into the CI

* WIP Ci integrate node template (#1701)

* copy artifacts to s3 bucket latest path

* typo

* bucket name

* Update wasm files

* Migrate the indicies crate to 2018 edition.

* Use .cloned() instead of .map(|x| x.clone())

* Update documentation.

* Add OnInitialise handler.

Closes #1686

* Fix typo

* Fix wasm build

* Add tests for initialise and finalise.

* Initial logic

* Fix tests

* Don't punish at all when everyone skipped

* Typo

* Fix tests.

* Update srml/aura/src/lib.rs

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

* Simplification.

* Bump runtime verions

* Limit block size in runtime,

* Add test for basic authorship.

* Store length of extrinsics instead of computing it.

* Don't rely on note_extrinsic

* Use hashed version of storage and write test.

* Recompile runtime.

* Support edition 2018 for storage_items macro

* Fix handle_wrap_internal

Clean up metadata format. Merge events metadata into runtime metadata. Remove low value info (internal macro identifier and counters).

Went through the TODOs, removed a bunch, which are outdated or nothing more than a regular comment, documented a bunch more as actual tickets and made them FIXMEs and unified their structure (`FIXME #TICKETNO DESC` for local tickets, `FIXME: DESC LINK` for external tickets) for easier in-editor support. Further more remove unnecessary remarks and related old code that I noticed in that instance.