Courses UI: Add student summary stats

app/styles/courses/mock1/course-details.sass

@@ -82,6 +82,9 @@
     font-weight: normal
     font-size: 14px
 
+  .student-cell
+    min-width: 150px
+
   .progress-cell
     padding: 2px
     padding-bottom: 10px

app/templates/courses/mock1/course-details.jade

@@ -153,8 +153,17 @@ mixin progress-tab
       tbody
         each student in instance.students
           tr
-            td
+            td.student-cell
               a= student
+              - var levelsCompleted = 0
+              each level in course.levels
+                if userLevelStateMap[student][level] === 'complete'
+                  - levelsCompleted++
+              - var secondsPlayed = Math.round(Math.random() * 1000 * (levelsCompleted + 1))
+              - var secondsLastPlayed = Math.round(Math.random() * 100000)
+              div #{levelsCompleted} levels completed
+              div #{moment.duration(secondsPlayed, 'seconds').humanize()} played
+              div Played #{moment().subtract(secondsLastPlayed, 'seconds').fromNow()}
             td.progress-cell
               .level-progression-concepts Concepts
               each concept in courseConcepts