show creation date for each change

src/c3nav/editor/static/editor/css/editor.css

@@ -137,9 +137,17 @@ form button.invisiblesubmit {
     width:23px;
     padding-right:0;
 }
+.change-group tr td:last-child {
+    white-space:nowrap;
+    text-align:right;
+}
 .change-group tr td .glyphicon {
     top:2px;
 }
+.change-group tr td .tooltip {
+    font-size:14px;
+    margin-top: -1px;
+}
 
 /* Styles inside leaflet */
 .leaflet-container {

src/c3nav/editor/static/editor/js/editor.js

@@ -147,6 +147,8 @@ editor = {
             $('.changeset a').text(changeset.text()).attr('href', changeset.attr('href'));
         }
 
+        content.find('[data-toggle="tooltip"]').tooltip();
+
         var geometry_url = content.find('[data-geometry-url]');
         if (geometry_url.length) {
             geometry_url = geometry_url.attr('data-geometry-url');

src/c3nav/editor/templates/editor/changeset.html

@@ -14,7 +14,7 @@
     <table class="table table-condensed table-h-bordered change-group">
         <thead>
             <tr>
-                <th colspan="2">
+                <th colspan="3">
                     {% if group.obj_title %}
                         {{ group.obj_title }} <small>({{ group.obj }})</small>
                     {% else %}

src/c3nav/editor/views.py

@@ -7,6 +7,7 @@ from django.core.exceptions import FieldDoesNotExist, PermissionDenied
 from django.http import HttpResponseRedirect
 from django.shortcuts import get_object_or_404, redirect, render
 from django.urls import reverse
+from django.utils.formats import date_format
 from django.utils.html import escape
 from django.utils.translation import ugettext_lazy as _
 from django.views.decorators.cache import never_cache
@@ -378,7 +379,9 @@ def changeset_detail(request, pk):
             last_obj = obj
 
         change_data = {
-            'pk': change.pk
+            'pk': change.pk,
+            'author': change.author,
+            'created': _('created at %(datetime)s') % {'datetime': date_format(change.created, 'DATETIME_FORMAT')},
         }
         changes.append(change_data)
         if change.action == 'create':