Get rid of stability annotations and document stability with api

This change adds a stability value to the api annotation, with
'experimental' as default value.

enum, typedef and event annotations are never exportable, but
api annotations are needed there to make them appear in the
docs.

Nested typedefs are no longer inlined recursively, because the
resulting tables get too wide with the current template.

src/ol/control/control.js

@@ -16,8 +16,7 @@ goog.require('ol.Object');
  * @extends {ol.Object}
  * @implements {oli.control.Control}
  * @param {olx.control.ControlOptions} options Control options.
- * @todo stability stable
- * @todo api
+ * @todo api stable
  */
 ol.control.Control = function(options) {
 
@@ -64,7 +63,6 @@ ol.control.Control.prototype.disposeInternal = function() {
 /**
  * Get the map associated with this control.
  * @return {ol.Map} Map.
- * @todo stability experimental
  * @todo api
  */
 ol.control.Control.prototype.getMap = function() {
@@ -86,8 +84,7 @@ ol.control.Control.prototype.handleMapPostrender = goog.nullFunction;
  * Subclasses may set up event handlers to get notified about changes to
  * the map here.
  * @param {ol.Map} map Map.
- * @todo stability stable
- * @todo api
+ * @todo api stable
  */
 ol.control.Control.prototype.setMap = function(map) {
   if (!goog.isNull(this.map_)) {