Fixed tests for removing hash access to hints. Fixed instructor view for same.

lms/templates/instructor/hint_manager_inner.html

@@ -8,12 +8,12 @@ Switch to <a id="switch-fields" other-field="${other_field}">${other_field_label
 
 % for definition_id in all_hints:
     <h2> Problem: ${id_to_name[definition_id]} </h2>
-    % for signature, answer, hint_dict in all_hints[definition_id]:
+    % for answer, hint_dict in all_hints[definition_id]:
         % if len(hint_dict) > 0:
             <h4> Answer: ${answer} </h4><div style="background-color:#EEEEEE">
         % endif
         % for pk, hint in hint_dict.items():
-            <p data-problem="${definition_id}" data-pk="${pk}" data-answer="${signature}">
+            <p data-problem="${definition_id}" data-pk="${pk}" data-answer="${answer}">
                 <input class="hint-select" type="checkbox"/> ${hint[0]}
                 <br /> 
                 Votes: <input type="text" class="votes" value="${str(hint[1])}" style="font-size:12px; height:20px; width:50px"></input>