fix aleth genesis file and instructions#143

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hugo-dc wants to merge 3 commits intomasterfrom

Commits on Dec 16, 2018

fix aleth genesis file, fix aleth instructions
hugo-dc
committed

Commits on Jan 24, 2019

Remove startBlock from precompiles
hugo-dc
committed

Commits on Feb 5, 2019

fix aleth genesis
jwasinger
committed