Replaced Mac keys in Regex with entity numbers

When editing the js file with a font that does not support the ⌘ and ⇧ characters
they are replaced by "?" in the RegExp. 

i.e.
  return sHtml.replace(/⌘/g, 'Ctrl').replace(/⇧/g, 'Shift');
becomes
  return sHtml.replace(/?/g, 'Ctrl').replace(/?/g, 'Shift');