core, params, tests: add DAO hard-fork balance moves

[karalabe]

Prerequisite PRs, merge these first to get rid of duplicate commits:

• core, eth: enforce network split post DAO hard-fork core, eth: enforce network split post DAO hard-fork #2795

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This PR implements the last component of the DAO hard-fork, namely defines the list of DAO addresses the balances of which should be moved and executes the actual state transformation when the DAO hard-fork block arrives.

The PR also adds the DAO consensus tests from the upstream https://github.com/ethereum/tests repo, although as far as I know those tests are still under development, and hence are subject to change.

Note, the fork parameters (block number and refund account) are just placeholders, whereas the DAO drain list may or may not change.

[robotally]

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Updated: Sat Jul 16 10:09:43 UTC 2016

[karalabe]

Pass directly, not copy.

[aakilfernandes]

Correct me if I'm wrong, but it looks like this leaves the hard fork block to the user. Does this mean that if different users set different blocks, they'll end up on different forks?

[karalabe]

The user can only opt-in/opt-out, default blocks are provided for the
mainnet and testnet. The configurable block number is only meaningful for
private networks (i.e. testing).
On Jul 13, 2016 19:01, "Aakil Fernandes" notifications@github.com wrote:

Correct me if I'm wrong, but it looks like this leaves the hard fork block
to the user. Does this mean that if different users set different blocks,
they'll end up on different forks?

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[aakilfernandes]

Got it, thanks. Has the default block number been selected yet?

[karalabe]

Superseeded and merged in #2814.