anchor.diff:                          div
                             - var playTime = Math.round(Math.random() * 600)
                             span Time to solve
  -                          span : #{playTime} seconds
  +                          span : #{moment.duration(playTime, "seconds").humanize()}
                           div
                             - var completionDate = new Date()
                             - completionDate.setUTCDate(completionDate.getUTCDate() - Math.round(Math.random() * 60))
  
positive.code:               td #{instance.students.length}
              tr
                td Average level play time:
                td #{stats.averageLevelPlaytime} seconds
              tr
                td Total play time:
                td #{stats.totalPlayTime} seconds
              tr
                td Average levels completed:
                td #{stats.averageLevelsCompleted}
  
negative.code:               td Total levels completed:
                td #{stats.totalLevelsCompleted}
              tr
                td Furthest level completed:
                td #{stats.lastLevelCompleted}
          .col-md-6
            h3 Concepts Covered
  