* The front-end for each hard-fork, also EIP-160.
* Address EIP161 a/c
* Include EIP-161b
* EIP-161 part d.
* Fix test build.
* Fix one test, add another.
* Fix use of bloom & renaming.
* Initial groundwork for EIP-155
* Fix minor bug.
* Fix all tests finally.
* Rest of EIP-155.
* Add tests for EIP-155 algorithm.
Update transaction tests validation.
* Minor reformat.
* Address grumbles.
* Remove unused code.
* Fix SUICIDE gas mechanism and add consensus tests.
* Remove commented code.
* Set Frontier hardfork block number
* Fix warning.
* Transaction tests,
* Minor additions to allow resetting of code.
* Add test.
* Provisional DAO hard-fork proposal.
* Change to reflect latest HF spec.
* Include extradata restrictions and overrides.
* Introduce new tests.
* Update tests to new spec format.
* Allow JSON chain spec fields to be optional.
* Remove superfluous definitions. Fix overflow risk.
* Fix build.
* Add missing file.
* Remove old flag.
* Update to latest address set.
* Update tests and test spec to latest.
Change the mining default to release only on own transactions.
* Firt commit.
* First non-functional but correct implementation of BasicAuthority.
Still needs:
- Sealing infrastructure.
* Punch a hole to give miner access to key store.
* Fix test built.
* Basic version of synchronous mining.
This will seal a block whenever a new transaction comes through.
To be made better we need a timer which will wait for one second after the
last block before sealing a new one - better still would be to cooperatively
interleave blocks with other sealing nodes.
* Add tests.
* Fix minor issues from repotting.
* Address grumbles.
