clone.orderbook does not strip history#75

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nmatare wants to merge 2 commits intobraverock:masterfrom

nmatare:clone.orderbook

Commits on Dec 22, 2017

clone.orderbook && strip.history did not __actually__ remove history AND it kept first order in orderbook; if order was open this could produce undesirable results
nmatare
committed

Commits on Dec 23, 2017

clone portfolio would alter original portfolio because .getPortfolio was method used; thus any changes to the clone resulted in changes to the original
nmatare
committed