Fix manual merge bug in autohint:main.c.  Change makeInstancesUFO to work with latest mutatorMath and fontMath modules, and remove all references to old instances.txt metadata file. Fix typos in checkOutlinesUFO.
Fix manual merge bug in autohint:main.c.  Change makeInstancesUFO to work with latest mutatorMath and fontMath modules, and remove all references to old instances.txt metadata file. Fix typos in checkOutlinesUFO.

khaledhosny/psautohint,khaledhosny/psautohint