Add function Rho to calculate asymptotic confidence region size

	modified:   @PhiDivergence/PhiDivergence.m
Add indication of accurate prediction
Modify assertions
Test for probability tollerance in TestTwoStage.m
Add codes to track solution time as number of scenarios increases

	new file:   PlotSolveTime.m
	new file:   PruneScenarios.m
Merge branch 'master' of github.com:davidlove/lroaz