ethcore: enable constantinople on ethereum (#10031)

* ethcore: change blockreward to 2e18 for foundation after constantinople

* ethcore: delay diff bomb by 2e6 blocks for foundation after constantinople

* ethcore: enable eip-{145,1014,1052,1283} for foundation after constantinople

ethcore/res/ethereum/foundation.json

@@ -9,7 +9,8 @@
 				"durationLimit": "0x0d",
 				"blockReward": {
 					"0": "0x4563918244F40000",
-					"4370000": "0x29A2241AF62C0000"
+					"4370000": "0x29A2241AF62C0000",
+					"7080000": "0x1BC16D674EC80000"
 				},
 				"homesteadTransition": "0x118c30",
 				"daoHardforkTransition": "0x1d4c00",
@@ -134,7 +135,8 @@
 				],
 				"eip100bTransition": 4370000,
 				"difficultyBombDelays": {
-					"4370000": 3000000
+					"4370000": 3000000,
+					"7080000": 2000000
 				}
 			}
 		}
@@ -158,7 +160,11 @@
 		"eip140Transition": 4370000,
 		"eip211Transition": 4370000,
 		"eip214Transition": 4370000,
-		"eip658Transition": 4370000
+		"eip658Transition": 4370000,
+		"eip145Transition": 7080000,
+		"eip1014Transition": 7080000,
+		"eip1052Transition": 7080000,
+		"eip1283Transition": 7080000
 	},
 	"genesis": {
 		"seal": {