Fix a couple bugs with organizer view

[mehalshah]

• blank comments should not get bullets
• should not include enrollments for pending classes for workshop aggregations

[Hamms]

why not just filter before maping?

[mehalshah]

The syntax got really compressed.

_.filter(thisWorkshop[question['key']], (answer) => {return !!_.trim(answer)}).map((answer, j) => {
                return (
                  <li key={j}>
                    {answer}
                  </li>
                );
              })

[Hamms]

I was thinking more

thisWorkshop[question['key']].filter((answer) => {
  return !!_.trim(answer);
}).map((answer, j)) => {
  return (
    <li key={j}>
      {answer}
    </li>
  );
});