* Refactor duplicate into code

* Upgrade lmd-ghost to newer blockchain version

* Implement ShasperBackend

* Upgrade to blockchain 0.7

* Implement commit and chain query interface for rocksdb

* RocksDB backend creation logic

* Add rocksdb invocation from commandline

* Update README and upgrade blockchain client to newer version

* Remove unfinished pruning lmd-ghost strategy

* Move substrate-specific crates to subfolder substrate

* Fix cargo lock

* Fix CI

* Check in runtime wasm file

* Print out attestation assignment for known validators

* [WIP] Creating attestations for validators

* Build executive directly from executor

* Add BitField bit setters

* Create signature

* Simple attestation pool implementation

* Remove unused file for now

* Expose proposer index and pubkey to executor

* Use importer even for self-built blocks

* Remove unused imports

* New block builder routine

* Switch to real bls implementation and properly sign all data structures

* Fix compile warning

* Add conditional compile for serde(skip)

* Fix flip can be lower than zero issue

* Fix previous_block_root calculation

* Fix block identifier generation and add empty block authoring

* Fix all spotted authoring panic

* fix: ancestorQuery should never return None

* fix: lmd-ghost error types unification

* Make lmd-ghost properly set head

* Implement JustifiableExecutor for beacon block struct

* Replace BestDepthImporter with ArchiveGhostImporter

* Create archive lmd-ghost impl for simplicity

* Add blockchain executable directly built on top of libp2p

* Fix tests

* [WIP] Update all config and struct definitions

* [WIP] Utils function spec update I

* [WIP] Utils functions spec update II

* [WIP] Re-init beacon

Cherry-pick back old code rather than modifying it is easier to do -- as there are many changes.

* [WIP] Cherry-pick back all types

* [WIP] Cherry pick back all helpers

* [WIP] Cherry-pick back validator status helpers

* [WIP] Migrate back per epoch helpers

* [WIP] Cherry-pick justification and finalization

* [WIP] Redo crosslink and rewards

* [WIP] Cherry-pick back all per epoch operations

* [WIP]

* [WIP] Port back all operations

* Add state root verification

* [WIP] Fix warnings

* Finish fixing all warnings

* Add function to execute block

* Add back small config

* Add new test repo

* Update yamltests for the new format and pass those tests

* Check block state root in execute_block

* Add full tests

* Update tests

* Add back block builder

* Fix other crate compile

* Make beacon crate work again in no_std

* beacon: UnsealedBeaconBlock

* Upgrade blockchain to 0.5.1

* ci uses up-to-date builder dockerfile and our new caching

* new dockerfile, probably temporarily, tested.

* Simple interface to blockchain

* Add block builder interface

* All basic ops for hashing using Digest interface

* Add support for digestible in ssz-derive

* Add Digestible interface for beacon crate

* Support no_encode for ssz_derive

* ssz: move trait bound of Hashable to trait definition

* Get derive to work with the new hashable

* Use new hashable interface for beacon crate

* Fix all missing docs in ssz

* Add docs for all beacon structs

* Update version

* ssz, ssz-derive: publish v0.1.1

* Remove keccak-hasher dependency

* [WIP] Reverse dependency for serenity crate

* Rename serenity to beacon

* Introduce with-codec and with-serde features for beacon

* Fix all compile due to interface changes

* Add description and license for beacon crate

* Update beacon version

* Commit cargo lock

* Pass v0.5.1 tests

* Fix encoding issue

* Add a full config

* Allow config struct to be passed from yamltests

* Fix tests

* Implement a config trait

* Migrate cache to use config struct

* Migrate per_block to use config

* Migrate per epoch processing to use config

* Migrate per slot executive to use config

* Use executive in execute_block

* Gradually remove all consts

* Clean up more consts

* Clean up the rest of consts and util

* Fix tests

* Implement use_fixed attr so that FixedVec can be hidden

* Fix yamltests and fix missing use_fixed in hash derive

* Ignore keys, data* and nix shell config

* Add eth2.0-tests submodule

* Move structs to yamltests

* Integrate small config state test to CI

* Update submodule in init script

* Use GIT_SUBMODULE_STRATEGY

* Make sure all tests are checked and fix an issue in slot progression

* Fix an overflow issue and flush stdout when running tests

* Add parameter to allow only running one test

* Fix epoch overflow and an issue related to effective balance

* Add test for permuted_index

* Fix a bug in beacon block index calculation

* Fix an issue in attestation inclusion

* Fix missing logic for handling deposit

* Shouldn't use wrapping

* Fix an issue in ssz and bitfield

* Add test for basic header serialization

* Fix serialization issue in beaconstate

* Make some tests to pass

* Comment out deposit_count for now

Test states it does not exist at this moment, while spec disagrees

* Ignore genesis block test because test/spec difference

* Add yamltests tool for running yaml state tests

* deny_unknown_fields for state

* Add deny_unknown_fields for all structs

* Do not use serde derive feature

* Remove derive feature from yamltests

* Move per_epoch and cache operations to its own mod

* Move per_slot code to its own mod

* Move per_block code to a separate mod

* Move from zcash's crypto to signature-schemes

* Make secret making accept secrets of any length

* Make serenity crate use amcl crypto