Thank you, Tim!
This kind of well documented lists of necessary changes make upgrading 3rd party plugins much easier than using typical "trial by error"-method (or "check and change")
Vmatch question type that Ravi is using is almost equal to match question type - mostly "match" is just replaced with "vmatch" in files and filenames - and questions and answers are shown vertically using Joseph's suggestions for moodle 1.9 modification and a couple of rows of css added to make drop down lists longer. So if match question type is going to have major changes in the future, vmatch question type should simply be modified to use similar changes...