initial integration of Harvey & Liu Profit Hurdle into package

This implemention is tightly tied to portfolios, strategies, and test results from blotter and quantstrat. see #64

NAMESPACE

@@ -2,6 +2,8 @@
 
 S3method(print,dof)
 S3method(print,haircutSR)
+S3method(print,profitHurdle)
+export(.profitHurdle)
 export(SharpeRatio.deflated)
 export(SharpeRatio.haircut)
 export(add.distribution)
@@ -46,6 +48,8 @@ export(match.names)
 export(osMaxPos)
 export(osNoOp)
 export(post.signal.returns)
+export(profit.hurdle)
+export(profitHurdle)
 export(put.orderbook)
 export(put.strategy)
 export(rm.strat)
@@ -97,4 +101,4 @@ importFrom(stats,start)
 importFrom(stats,time)
 importFrom(utils,glob2rx)
 importFrom(utils,installed.packages)
-useDynLib(quantstrat,.registration=TRUE,.fixes="C_")
+useDynLib(quantstrat, .registration=TRUE, .fixes="C_")