Fixes #1235: Fix permission name for adding/editing inventory items

netbox/templates/dcim/inc/inventoryitem.html

@@ -5,10 +5,10 @@
     <td>{{ item.part_id }}</td>
     <td>{{ item.serial }}</td>
     <td class="text-right">
-        {% if perms.dcim.change_inventory_item %}
+        {% if perms.dcim.change_inventoryitem %}
             <a href="{% url 'dcim:inventoryitem_edit' pk=item.pk %}" class="btn btn-xs btn-warning"><span class="glyphicon glyphicon-pencil" aria-hidden="true"></span></a>
         {% endif %}
-        {% if perms.dcim.delete_inventory_item %}
+        {% if perms.dcim.delete_inventoryitem %}
             <a href="{% url 'dcim:inventoryitem_delete' pk=item.pk %}?return_url={% url 'dcim:device_inventory' pk=device.pk %}" class="btn btn-xs btn-danger"><span class="glyphicon glyphicon-trash" aria-hidden="true"></span></a>
         {% endif %}
     </td>