Make it possible to compile into the twine2 format

Tweego uses twine2 mode when story format file name is  "format.js".
In this mode all .js scripts get joined and are put into a single
<script> tag. The problem was that src/js/familyTreeJS.js contained
"</script>" in a comment block. Apparently, sugarcube ignores comments when
looking for script end, and takes misinterprets the tag as a real end of
script, freaking out at everything that it encounters after this false
end of script.