Use @observable annotation instead of @todo observable

src/ol/overlay.js

@@ -154,7 +154,7 @@ goog.inherits(ol.Overlay, ol.Object);
 /**
  * Get the DOM element of this overlay.
  * @return {Element|undefined} The Element containing the overlay.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.getElement = function() {
@@ -170,7 +170,7 @@ goog.exportProperty(
 /**
  * Get the map associated with this overlay.
  * @return {ol.Map|undefined} The map that the overlay is part of.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.getMap = function() {
@@ -186,7 +186,7 @@ goog.exportProperty(
 /**
  * Get the offset of this overlay.
  * @return {Array.<number>} The offset.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.getOffset = function() {
@@ -203,7 +203,7 @@ goog.exportProperty(
  * Get the current position of this overlay.
  * @return {ol.Coordinate|undefined} The spatial point that the overlay is
  *     anchored at.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.getPosition = function() {
@@ -220,7 +220,7 @@ goog.exportProperty(
  * Get the current positioning of this overlay.
  * @return {ol.OverlayPositioning} How the overlay is positioned
  *     relative to its point on the map.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.getPositioning = function() {
@@ -306,7 +306,7 @@ ol.Overlay.prototype.handlePositioningChanged = function() {
 /**
  * Set the DOM element to be associated with this overlay.
  * @param {Element|undefined} element The Element containing the overlay.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.setElement = function(element) {
@@ -321,7 +321,7 @@ goog.exportProperty(
 /**
  * Set the map to be associated with this overlay.
  * @param {ol.Map|undefined} map The map that the overlay is part of.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.setMap = function(map) {
@@ -336,7 +336,7 @@ goog.exportProperty(
 /**
  * Set the offset for this overlay.
  * @param {Array.<number>} offset Offset.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.setOffset = function(offset) {
@@ -352,7 +352,7 @@ goog.exportProperty(
  * Set the position for this overlay.
  * @param {ol.Coordinate|undefined} position The spatial point that the overlay
  *     is anchored at.
- * @todo observable
+ * @observable
  * @api stable
  */
 ol.Overlay.prototype.setPosition = function(position) {
@@ -368,7 +368,7 @@ goog.exportProperty(
  * Set the positioning for this overlay.
  * @param {ol.OverlayPositioning} positioning how the overlay is
  *     positioned relative to its point on the map.
- * @todo observable
+ * @observable
  * @api
  */
 ol.Overlay.prototype.setPositioning = function(positioning) {