* forks support in changes trie storage

* moved convert_hash to primitives

* optimize ChangesTrieRootsStorage::root when anchor is canonicalized

docs: Extends #999. Remove disused package readmes. Rename to sr-metadata. Fix Readme Rustdoc names (#1016)

* docs: Remove safe-mix since is no longer local dependency

* docs: Fix existing packages link. Still only includes Substrate Core

* docs: Remove empty package Readmes. Remove old docs links. Rename to Readme

* docs: Remove link to old docs

* misc: Merge latest from master. Renaem to sr-metadata. Fix list of RustDoc package names

* Rename substrate-metadata to sr-metadata, since it is in the "srml" subdirectory

* Change example to use package name that opens all packages in RustDocs

* Fix list of packages names that are available to open in RustDocs

* fix typo

* fix ordering of CLI options and add missing backslash

* Rename Config → Schedule.

* Fetch and pass config.

* Integrate config everywhere.

* <<<E as Ext>::T as Trait> → <<E::T as Trait>

* Update roots

* Cache existential_deposit

* Update COMPLEXITY.md

* Update roots.

* test-utils: add chain-spec-builder cli

* style changes, mostly indentation

* fix padding

* add issue to todo

* more style fixes

* share seed padding with keystore

* fix master rebase error

* Add properties to chain spec

* Read properties as serde_json::Value

* Use a serde json::map::Map directly for properties

* Add type alias for json Map

* Update chain_spec.rs

* Remove superfluous serde requirements.

* Try to ensure hash is serde

* Fixups

* Building again

* Attempt to reenable Block (doesn't build)

* Fixes compilation for node cli

* Fixes test compilation

* Fix wasm

* Fix tests

* Remove unneeded changes

* Fix up comments

* Reenable some code

* Compile error when origin misused.

* Remove unnecessary includes of `serde_derive`

* Cleanups

* WIP

* Use latest lip2p master

* [core/primitives] Update crunchy 0.1 => 0.2

* [core/primitives] Update fixed-hash 0.2 => 0.3.0-beta

* [core/primitives] Update `uint` 0.4 => 0.5.0-beta

* [core/state-machine] Fix errors emerged by fixed-hash update

* [core/state-db] Fix errors that emerged from fixed-hash update

* [core/sr-io] Fix errors that emerged from the fixed-hash update

* [core/trie] Fix errors emerged from fixed-hash updates

* [core/trie] Make use of new Hash::as_fixed_bytes_mut method in tests

* [core/sr-primitives] Fix errors emerged from updating fixed-hash

* [core/executor] Fix errors that emerged from fixed-hash update

* [core/test-runtime] Fix errors that emerged from updating fixed-hash

* [core/test-runtime] Fix an error that emerged from fixed-hash update

* [core/transaction-pool] Fix errors that emerged from updating fixed-hash

* Add From<u64> impl for hash types defined in core/primitives

* [core/client/db] Fix errors that emerged from fixed-hash update

* [core/{client/network/rpc}]: Fix errors emerged by fixed-hash update

* [node/{cli/executor/runtime}]: Fix errors emerged by updating fixed-hash

* [core/network]: Fix bug in parsing constant str

* Update Cargo.lock

- Add crunchy 0.2.1
- fixed-hash 0.2.2 => 0.3.0-beta.3
- Add static-assertions 0.2.5
- uint 0.4.1 => 0.5.0-beta.1

* [core/primitives]: Add fixed-hash/rustc-hex feature for FromStr impl

* [core/primitives] No longer provide From<u64> impl for hash types if byteorder support is not enabled

* [core/primitives] Revert to using From impl again in primitives tests

* [core/..] Fix some bugs that emerged by recent fixed-hash updates

* Update a bunch of Cargo.lock files

* [core/state-db] Re-add whitespace between attr and extern crate/mod

* [core/primitives] Fix bug in From<u64> impl for hash types using the wrong feature guard

* Sandbox mem IO according to COMPLEXITY.md

* Fix tests.

* Update root hash for deploying contract test.

* Support multi trie in genesis generation

* Fix merge issues

* Generalize BlockImport

 - move ImportBlock, BlockOrigin, ImportResult into shared sr-primitives
 - let Consensus provide  and  traits again
 - update consensus traits to latest development
 - implement traits on client::Client, test_client::TestClient
 - update RHD to use the new import_block API

* Move ImportBlock into consensus-common
* Send import notification in aura tests
* Integrating aura into service
* Make Signatures more generic
* Aura Block Production with the given key
* run aura on the thread pool
* start at exact step start in aura
* Add needed wasm blob, in leiu of better solutions.
* Make API ids consistent with traits and bring upstream for sharing.
* Add decrease_free_balance to Balances module
* Encode `Metadata` once instead of two times
* Bitops include xor
* Upgrade key module.
* Default pages to somewhat bigger.
* Introduce upgrade key into node
* Add `Created` event

* Compute next index for misbehaviour reporting correctly.

* Merge branch 'master' into td-graph-improvements

* General `decl_module` improvements

* Make `deposit_event` implementable by `decl_module!`

* Make `decl_module!` implement calls directly

* Regenerate the wasm file after master rebase

* Remove nonsense code and options, fix score and generally make subkey work.

* Rename Demo -> Node

* Add Assets module

* Fixes

* Fix

* Update comments

* Support `GenesisConfig` without any fields

Fixes: #923

* Do not generate an empty `GenesisConfig`, instead generate no `GenesisConfig`

* Move `chain_spec` into `node-cli`

* Fixes tests

* Adds `construct_simple_service` and `construct_service_factory` macros

* Remove the `node-service` crate

* Add some documentation

* Fixes compilation on stable

* moved DigestItem impl to impl_outer_log

* Enable backtrace collecting on the CI

* internal module is not required in impl_outer_log

* Revert "internal module is not required in impl_outer_log"

This reverts commit 5430446971cdf5fd5735863b86cd08a11d35d1dd.

* Revert "moved DigestItem impl to impl_outer_log"

This reverts commit 8872bbee963dbb4316251222f5c0757303fb3f52.

* Revert "Revert "moved DigestItem impl to impl_outer_log""

This reverts commit 47afd59682f8828665bd9cfb293b40ce4c4787af.

* Revert "Revert "internal module is not required in impl_outer_log""

This reverts commit 9ae640010c00ef134099d5b6a4430d330be134b2.

* More diagnostics

* check if only 1 test fails

* test is back + some "traces"

* removed some traces

* removed "traces"

* Adds new `ProvideInherent` trait

Also implements the new trait for `srml/consensus` and `srml/timestamp`.

* Adds `impl_outer_inherent!` macro

* Reexport macros from `alloc`

* Introduce `RuntimeString` and fix `ProvideInherent` on `no_std`

* Replace `VersionString` with `RuntimeString`

* Improvements for `impl_outer_inherent!`

* Make `construct_runtime!` support `impl_outer_inherent!`

* Fixes after rebase

* Whitespace

* Try to make everything compact

* Make `Clone` work

* Fix

* Move contracts and balances over to compact encoding

* Session and timestamp are compact

* Sataking uses compact numbers

* Treasury now compact

* Compact Democracy

* Council is compact

* Fix

* Adds new `check_inherents` function to the `BlockBuilder` API

* Switch to `check_inherents` in `node-consensus`

* Remove `CheckedBlock`, because it is not required anymore

* Fixes after rebase

* Fixes compilation on stable

* Split out Consensus
* Supply ImportQueue through network-service
  - simplify ImportQueue.import_blocks
  - remove Deadlock on import_block
  - Adding Verifier-Trait
  - Implement import_queue provisioning in service; allow cli to import
* Allow to actually customize import queue
* Consensus Gossip: Cache Message hash per Topic

* Make `on_message` take the message as `&mut Option<_>`

* Make `ConsensusGossip` implement `Specialization`

* Move `new_session` into `ConsensusGossip`

* Adds `construct_simple_protocol` macro for simplifying the creation of protocols

* Make the graph generic.

* Adapting pool API for the graph.

* Merge pool & graph.

* Restructure.

* Fix test of transaction pool.

* Get rid of node/transaction-pool.

* Compilation fixes.

* Test7

* Fix compilation of tests.

* Revert runtime changes.

* Add validate_transaction to test-runtime.

* Fix RPC tests.

* Add clearing of the old transactions.

* Trigger pool events.

* Use new queue API.

* Fix wasm build, re-export Hasher.

* No warning if validate transaction fails.

* Get rid of Into<u64> and use As

* Rename `NewTxQueue` to `TaggedTransactionQueue`

* Remove `BlockBuilder` API and support adding documentation to the API functions

* Adds new `BlockBuilder` API

* Fixes compilation with new `BlockBuilder` API

* Some more cleanup

* Cargo.lock update

* Try to fix on stable

* Add missing `As` imports.

* Adds new API traits that will be used by the client and runtime

* Switch consensus to new API's

* Switches transaction-pool to new API's

* Move runtime api stuff into its own crate

* Adds `impl_apis!` macro for implementing the new API traits

* Make `metadata` return directly a blob

* Runtime replace `impl_stubs!` with `impl_apis!`

* Switches to none feature based approach for declaring the different API traits

* Fixes compilation error

* Fixes errors

* Make the `decl_apis!` trait usable from the outside

* Make the `test-client` use the new API traits

* Remove last `impl_stubs!` bits and move some of them into wasm executor for tests

* A little bit more documentation

* implement grandpa client

* consensus gossip with arbitrary topics

* defer GRANDPA messages until referenced blocks imported

* set up communication for voter in a transparent way

* instantiate GRANDPA voter

* keep last round state on disk

* switch back to crates.io finality-grandpa

* update cargo.lock

* use new `collect_garbage` API

* update sync test framework and make public

* test that observers can observe

* fix warning

* use more idiomatic predicate for collecting garbage in gossip

* kill spaces

* fix date

* enhance macro decl_storage()

* update the state root hash

* fix one comment

* remove one map implementation in test

* remove one map macro

* remove one map macro

* remove one map macro

* Update BBQ Birch def

* Fix

* Fix `sandbox::Memory` lifecycle for no_std env

* Retain memories in env_def builder and instance

* Add scoped memory creation to test RC semantics

* Add deploying_wasm_contract_should_work test.

* Fix sandboxed memory set function.