Data.xml: Correct issue with score formulas

Danny,

You'll want to grab this commit for your next update. This fixes a bug in the JS score computation formulas stored in the Data.xml file. It could cause an inconsistency between what the form reported and what's actually recorded in the team score log.

Have to use multiply operation to ensure that number values
stay numbers when adding parts together. Scorer was getting
confused and adding the two numbers as strings and getting
"30" instead of 3+0 = 3.