bugfixes, policies, errors now have a link to the submissions

app/views/comments/index.json.jbuilder

@@ -1,4 +1,4 @@
 json.array!(@comments) do |comment|
-  json.extract! comment, :id, :user_id, :file_id, :row, :column, :text
+  json.extract! comment, :id, :user_id, :file_id, :row, :column, :text, :username
   json.url comment_url(comment, format: :json)
 end

app/views/exercises/_editor_frame.html.slim

@@ -12,4 +12,4 @@
         = link_to(file.native_file.file.name_with_extension, file.native_file.url)
   - else
     .editor-content.hidden data-file-id=file.ancestor_id = file.content
-    .editor data-file-id=file.ancestor_id data-indent-size=file.file_type.indent_size data-mode=file.file_type.editor_mode data-read-only=file.read_only
+    .editor data-file-id=file.ancestor_id data-indent-size=file.file_type.indent_size data-mode=file.file_type.editor_mode data-read-only=file.read_only data-id=file.id

app/views/request_for_comments/show.html.erb

@@ -29,6 +29,7 @@
     var lineInput = $('#lineInput');
     var commentInput = $('#commentInput');
     commentitor = ace.edit(commentitor[0]);
+    commentitor.setReadOnly(true);
 
     $('#submitComment').click(addComment);
     setAnnotations();
@@ -48,7 +49,7 @@
       jqrequest.done(function(response){
         $.each(response, function(index, comment) {
           comment.className = "code-ocean_comment"
-          comment.text = comment.user_id + ": " + comment.text
+          comment.text = comment.username + ": " + comment.text
         })
 
         commentitor.getSession().setAnnotations(response)