DAO hard-fork (#1483)

* 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.

Author: gavofyork

ethcore/res/ethereum/daohardfork_test.json

@@ -0,0 +1,162 @@
+{
+	"name": "DAO hard-fork consensus test",
+	"engine": {
+		"Ethash": {
+			"params": {
+				"gasLimitBoundDivisor": "0x0400",
+				"minimumDifficulty": "0x020000",
+				"difficultyBoundDivisor": "0x0800",
+				"durationLimit": "0x0d",
+				"blockReward": "0x4563918244F40000",
+				"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
+				"frontierCompatibilityModeLimit": "0x5",
+				"daoHardforkTransition": "0x8",
+				"daoHardforkBeneficiary": "0xbf4ed7b27f1d666546e30d74d50d173d20bca754",
+				"daoHardforkAccounts": [  
+					"0xd4fe7bc31cedb7bfb8a345f31e668033056b2728",
+					"0xb3fb0e5aba0e20e5c49d252dfd30e102b171a425",
+					"0x2c19c7f9ae8b751e37aeb2d93a699722395ae18f",
+					"0xecd135fa4f61a655311e86238c92adcd779555d2",
+					"0x1975bd06d486162d5dc297798dfc41edd5d160a7",
+					"0xa3acf3a1e16b1d7c315e23510fdd7847b48234f6",
+					"0x319f70bab6845585f412ec7724b744fec6095c85",
+					"0x06706dd3f2c9abf0a21ddcc6941d9b86f0596936",
+					"0x5c8536898fbb74fc7445814902fd08422eac56d0",
+					"0x6966ab0d485353095148a2155858910e0965b6f9",
+					"0x779543a0491a837ca36ce8c635d6154e3c4911a6",
+					"0x2a5ed960395e2a49b1c758cef4aa15213cfd874c",
+					"0x5c6e67ccd5849c0d29219c4f95f1a7a93b3f5dc5",
+					"0x9c50426be05db97f5d64fc54bf89eff947f0a321",
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+					"0xcc34673c6c40e791051898567a1222daf90be287",
+					"0x579a80d909f346fbfb1189493f521d7f48d52238",
+					"0xe308bd1ac5fda103967359b2712dd89deffb7973",
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+					"0xdbe9b615a3ae8709af8b93336ce9b477e4ac0940",
+					"0xf14c14075d6c4ed84b86798af0956deef67365b5",
+					"0xca544e5c4687d109611d0f8f928b53a25af72448",
+					"0xaeeb8ff27288bdabc0fa5ebb731b6f409507516c",
+					"0xcbb9d3703e651b0d496cdefb8b92c25aeb2171f7",
+					"0x6d87578288b6cb5549d5076a207456a1f6a63dc0",
+					"0xb2c6f0dfbb716ac562e2d85d6cb2f8d5ee87603e",
+					"0xaccc230e8a6e5be9160b8cdf2864dd2a001c28b6",
+					"0x2b3455ec7fedf16e646268bf88846bd7a2319bb2",
+					"0x4613f3bca5c44ea06337a9e439fbc6d42e501d0a",
+					"0xd343b217de44030afaa275f54d31a9317c7f441e",
+					"0x84ef4b2357079cd7a7c69fd7a37cd0609a679106",
+					"0xda2fef9e4a3230988ff17df2165440f37e8b1708",
+					"0xf4c64518ea10f995918a454158c6b61407ea345c",
+					"0x7602b46df5390e432ef1c307d4f2c9ff6d65cc97",
+					"0xbb9bc244d798123fde783fcc1c72d3bb8c189413",
+					"0x807640a13483f8ac783c557fcdf27be11ea4ac7a"
+				]
+			}
+		}
+	},
+	"params": {
+		"accountStartNonce": "0x00",
+		"maximumExtraDataSize": "0x20",
+		"minGasLimit": "0x1388",
+		"networkID" : "0x1"
+	},
+	"genesis": {
+		"seal": {
+			"ethereum": {
+				"nonce": "0x0000000000000042",
+				"mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
+			}
+		},
+		"difficulty": "0x400000000",
+		"author": "0x0000000000000000000000000000000000000000",
+		"timestamp": "0x00",
+		"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+		"extraData": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
+		"gasLimit": "0x1388"
+	},
+	"accounts": {
+		"0000000000000000000000000000000000000001": { "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
+		"0000000000000000000000000000000000000002": { "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
+		"0000000000000000000000000000000000000003": { "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
+		"0000000000000000000000000000000000000004": { "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } }
+	}
+}