NB: For multilabel, getTaskTargetNames and getTaskClassLevels actually return the same thing.
getTaskClassLevels(x)(character).
Other task: getTaskCosts,
getTaskData, getTaskDesc,
getTaskFeatureNames,
getTaskFormula, getTaskId,
getTaskNFeats, getTaskSize,
getTaskTargetNames,
getTaskTargets, getTaskType,
subsetTask