ges: Sprinkle around some Since: 1.16 markers

ges/ges-timeline-element.c

@@ -1864,6 +1864,8 @@ ges_timeline_element_paste (GESTimelineElement * self,
  * Returns: The priority of the first layer the element is in (note that only
  * groups can span over several layers). %GES_TIMELINE_ELEMENT_NO_LAYER_PRIORITY
  * means that the element is not in a layer.
+ *
+ * Since: 1.16
  */
 guint32
 ges_timeline_element_get_layer_priority (GESTimelineElement * self)

ges/ges-timeline.c

@@ -2565,6 +2565,8 @@ ges_timeline_paste_element (GESTimeline * timeline,
  * the timeline. If @new_layer_priority is superior than the number
  * of layers present in the time, it will move to the end of the
  * stack of layers.
+ *
+ * Since: 1.16
  */
 gboolean
 ges_timeline_move_layer (GESTimeline * timeline, GESLayer * layer,

ges/ges-uri-asset.c

@@ -533,6 +533,8 @@ ges_uri_clip_asset_new (const gchar * uri, GCancellable * cancellable,
  * Finalize the request of an async #GESUriClipAsset
  *
  * Returns: (transfer full): The #GESUriClipAsset previously requested
+ *
+ * Since: 1.16
  */
 GESUriClipAsset *
 ges_uri_clip_asset_finish (GAsyncResult * res, GError ** error)

ges/ges.c

@@ -390,6 +390,8 @@ ges_init_check (int *argc, char **argv[], GError ** err)
  * or ges_init_check().
  *
  * Returns: %TRUE if initialization has been done, %FALSE otherwise.
+ *
+ * Since: 1.16
  */
 gboolean
 ges_is_initialized (void)