TTAllpass2b: fixed problems with incorrect sign-flips (or non-flips) in the performance calculation.
TTAllpass2b: fixed problems with incorrect sign-flips (or non-flips) in the performance calculation.

eriser/JamomaCore,jamoma/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore,eriser/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore,jamoma/JamomaCore,eriser/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore,jamoma/JamomaCore,eriser/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore