Rename 'notes/reply_button' partial to 'notes/per_line_reply_button'

app/views/commits/_text_file.html.haml

@@ -23,4 +23,4 @@
             - comments.each_with_index do |note, i|
               = render "notes/per_line_show", note: note
               - @line_notes.reject!{ |n| n == note }
-            = render "notes/reply_button", line_code: line_code
+            = render "notes/per_line_reply_button", line_code: line_code

app/views/notes/_create_per_line_note.js.haml

@@ -11,7 +11,7 @@
       // find the commented line ...
       var trEl = $(".#{note.line_code}").parent();
       // ... and insert the note and the reply button after it
-      trEl.after("#{escape_javascript(render "notes/reply_button", line_code: note.line_code)}");
+      trEl.after("#{escape_javascript(render "notes/per_line_reply_button", line_code: note.line_code)}");
       trEl.after("#{escape_javascript(render "notes/per_line_show", note: note)}");
     } else {
       // instert new note before reply button