refacto: remove **some** of the disgusting int type casting

The line was too long anyway, it's best to have an intermediate variable

judgment/majorityjudgment.go

@@ -105,11 +105,17 @@ func (mj *MajorityJudgment) ComputeScore(tally *ProposalTally, favorContestation
 	for i := uint8(0); i < amountOfGrades; i++ {
 		analysis.Run(mutatedTally, favorContestation)
 		score += fmt.Sprintf("%0"+fmt.Sprintf("%d", amountOfDigitsForGrade)+"d", analysis.MedianGrade)
-		// fixme: BAD → uint64 to int conversion — either move to int everywhere, or use whatever bigint Go has
-		score += fmt.Sprintf("%0"+fmt.Sprintf("%d", amountOfDigitsForAdhesionScore)+"d", int(amountOfJudgments)+int(analysis.SecondGroupSize)*analysis.SecondGroupSign)
+		//adhesionScore := amountOfJudgments) + analysis.SecondGroupSize * analysis.SecondGroupSign
+		adhesionScore := amountOfJudgments
+		if analysis.SecondGroupSign > 0 {
+			adhesionScore = adhesionScore + analysis.SecondGroupSize
+		} else if analysis.SecondGroupSign < 0 {
+			adhesionScore = adhesionScore - analysis.SecondGroupSize
+		}
+		score += fmt.Sprintf("%0"+fmt.Sprintf("%d", amountOfDigitsForAdhesionScore)+"d", adhesionScore)
 		regradingErr := mutatedTally.RegradeJudgments(analysis.MedianGrade, analysis.SecondMedianGrade)
 		if nil != regradingErr {
-			return "", regradingErr // 仕方がない
+			return "", regradingErr // 仕方がない – C'est la vie ! (see issue #4)
 		}
 	}