Courses UI - Show progress to students by default

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

@@ -5,7 +5,6 @@ block content
   //- DO NOT localize / i18n
 
   div TODO: fix ugly tabs
-  div TODO: not enrolled yet
   div
     span *UNDER CONSTRUCTION, send feedback to
     a.spl(href='mailto:team@codecombat.com') team@codecombat.com
@@ -55,7 +54,12 @@ block content
 
   div(role='tabpanel')
     ul.nav.nav-tabs(role='tablist')
-      if !studentMode
+      if studentMode
+        li.active(role='presentation')
+          a(href='#levels', aria-controls='levels', role='tab', data-toggle='tab') Levels
+        li(role='presentation')
+          a(href='#progress', aria-controls='progress', role='tab', data-toggle='tab') Class
+      else
         li.active(role='presentation')
           a(href='#progress', aria-controls='progress', role='tab', data-toggle='tab') Class
         li(role='presentation')
@@ -64,8 +68,26 @@ block content
           a(href='#levels', aria-controls='levels', role='tab', data-toggle='tab') Levels
 
   .tab-content
-    if !studentMode
+    if studentMode
+      .tab-pane.active#levels(role='tabpanel')
+        +levels-tab
+      .tab-pane#progress(role='tabpanel')
+        +progress-tab
+    else
       .tab-pane.active#progress(role='tabpanel')
+        +progress-tab
+      .tab-pane#invite(role='tabpanel')
+        p Invite students to join this class.
+        if course.title !== 'Introduction to Computer Science'
+          p Student unlock code: #{instance.code}
+          p Class capacity: 34/50
+        textarea.textarea-emails(rows=3, placeholder="Enter student emails to invite, one per line")
+        div
+          button.btn.btn-success.btn-invite Send Invites
+      .tab-pane#levels(role='tabpanel')
+        +levels-tab
+
+mixin progress-tab
   if instance.students
     h3 Summary
     - var averagePlaytime = Math.round(Math.random() * 30) + 30
@@ -151,21 +173,6 @@ block content
                       span.spl #{level}
                 - i++
 
-      .tab-pane#invite(role='tabpanel')
-        p Invite students to join this class.
-        if course.title !== 'Introduction to Computer Science'
-          p Student unlock code: #{instance.code}
-          p Class capacity: 34/50
-        textarea.textarea-emails(rows=3, placeholder="Enter student emails to invite, one per line")
-        div
-          button.btn.btn-success.btn-invite Send Invites
-
-      .tab-pane#levels(role='tabpanel')
-        +levels-tab
-    else
-      .tab-pane.active#levels(role='tabpanel')
-        +levels-tab
-
 mixin levels-tab
   table.table.table-striped.table-condensed
     thead