bug fix to ballistic-match
bug fix to ballistic-match

shamrt/jsPsych,adrianoesch/jsPsych,wolfgangwalther/jsPsych,adrianoesch/jsPsych,jspsych/jsPsych,msrresearch/jsPsych,jspsych/jsPsych,andyh616/jsPsych,jspsych/jsPsych,Scienthusiast/jsPsych,wolfgangwalther/jsPsych,erikasf/jsPsych,vergenzt/jsPsych,andyh616/jsPsych,shamrt/jsPsych,jodeleeuw/jsPsych,Scienthusiast/jsPsych,vergenzt/jsPsych,jspsych/jsPsych,erikasf/jsPsych