Fix staff grading ML error info a bit

lms/static/coffee/src/staff_grading/staff_grading.coffee

@@ -392,10 +392,10 @@ class @StaffGrading
 
     else if @state == state_grading
       @ml_error_info_container.html(@ml_error_info)
-      meta_list = $("<ul>")
-      meta_list.append("<li><span class='meta-info'>Available - </span> #{@num_pending}</li>")
-      meta_list.append("<li><span class='meta-info'>Graded - </span> #{@num_graded}</li>")
-      meta_list.append("<li><span class='meta-info'>Needed for ML - </span> #{Math.max(@min_for_ml - @num_graded, 0)}</li>")
+      meta_list = $("<div>")
+      meta_list.append("<div class='meta-info'>#{@num_pending} available | </div>")
+      meta_list.append("<div class='meta-info'>#{@num_graded} graded | </div>")
+      meta_list.append("<div class='meta-info'>#{Math.max(@min_for_ml - @num_graded, 0)} more needed to start ML </div><br/>")
       @problem_meta_info.html(meta_list)
 
       @prompt_container.html(@prompt)

lms/static/sass/course/_staff_grading.scss

@@ -113,18 +113,9 @@ div.peer-grading{
     {
         background-color: #eee;
         padding:2px;
-        h3
+        div
         {
-            font-size:1em;
-        }
-        ul
-        {
-            list-style-type: none;
-            font-size: .85em;
-            li
-            {
-                margin: 1px 0px;
-            }
+            display : inline;
         }
     }
     .message-container,

lms/templates/instructor/staff_grading.html

@@ -42,10 +42,8 @@
 <section class="prompt-wrapper">
     <h2 class="prompt-name"></h2>
     <div class="meta-info-wrapper">
-        <h3>Problem Information</h3>
         <div class="problem-meta-info-container">
         </div>
-        <h3>Maching Learning Information</h3>
         <div class="ml-error-info-container">
         </div>
     </div>