Backport HP bugfix#801

shorowit merged 2 commits intorelease_1_11_2NatLabRockies/OpenStudio-ERI:release_1_11_2from

release_1_11_2_performance_curve_bugfixNatLabRockies/OpenStudio-ERI:release_1_11_2_performance_curve_bugfixCopy head branch name to clipboard