Improved replies support

app/templates/admin_new.html

@@ -2,10 +2,16 @@
 {% extends "layout.html" %}
 {% block content %}
 
+In reply to:
+{% if in_reply_to_object %}
+{{ utils.display_object(in_reply_to_object) }}
+{% endif %}
+
 <form action="{{ request.url_for("admin_actions_new") }}" enctype="multipart/form-data" method="POST">
     {{ utils.embed_csrf_token() }}
     {{ utils.embed_redirect_url() }}
     <textarea name="content" rows="10" cols="50" autofocus="autofocus" designMode="on" style="font-size:1.2em;width:95%;"></textarea>
+    <input type="hidden" name="in_reply_to" value="{{ request.query_params.in_reply_to }}">
     <input name="files" type="file" multiple>
     <input type="submit" value="Publish">
 </form>