Use @observable annotation instead of @todo observable

src/ol/dom/input.js

@@ -58,7 +58,7 @@ goog.inherits(ol.dom.Input, ol.Object);
 /**
  * If the input is a checkbox, return whether or not the checkbox is checked.
  * @return {boolean|undefined} The checked state of the Input.
- * @todo observable
+ * @observable
  * @api
  */
 ol.dom.Input.prototype.getChecked = function() {
@@ -73,7 +73,7 @@ goog.exportProperty(
 /**
  * Get the value of the input.
  * @return {string|undefined} The value of the Input.
- * @todo observable
+ * @observable
  * @api
  */
 ol.dom.Input.prototype.getValue = function() {
@@ -88,7 +88,7 @@ goog.exportProperty(
 /**
  * Sets the value of the input.
  * @param {string} value The value of the Input.
- * @todo observable
+ * @observable
  * @api
  */
 ol.dom.Input.prototype.setValue = function(value) {
@@ -103,7 +103,7 @@ goog.exportProperty(
 /**
  * Set whether or not a checkbox is checked.
  * @param {boolean} checked The checked state of the Input.
- * @todo observable
+ * @observable
  * @api
  */
 ol.dom.Input.prototype.setChecked = function(checked) {