Add documentation for the KML format.

src/ol/format/kmlformat.exports

@@ -1,6 +1,5 @@
 @exportSymbol ol.format.KML
 @exportProperty ol.format.KML.prototype.readFeature
 @exportProperty ol.format.KML.prototype.readFeatures
-@exportProperty ol.format.KML.prototype.readGeometry
 @exportProperty ol.format.KML.prototype.readName
 @exportProperty ol.format.KML.prototype.readProjection

src/ol/format/kmlformat.js

@@ -1443,6 +1443,16 @@ ol.format.KML.prototype.readSharedStyleMap_ = function(node, objectStack) {
 };
 
 
+/**
+ * Read the first feature from a KML source.
+ *
+ * @function
+ * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @return {ol.Feature} Feature.
+ */
+ol.format.KML.prototype.readFeature;
+
+
 /**
  * @inheritDoc
  */
@@ -1462,6 +1472,16 @@ ol.format.KML.prototype.readFeatureFromNode = function(node) {
 };
 
 
+/**
+ * Read all features from a KML source.
+ *
+ * @function
+ * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @return {Array.<ol.Feature>} Features.
+ */
+ol.format.KML.prototype.readFeatures;
+
+
 /**
  * @inheritDoc
  */
@@ -1573,6 +1593,16 @@ ol.format.KML.prototype.readNameFromNode = function(node) {
 };
 
 
+/**
+ * Read the projection from a KML source.
+ *
+ * @function
+ * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @return {ol.proj.Projection} Projection.
+ */
+ol.format.KML.prototype.readProjection;
+
+
 /**
  * @inheritDoc
  */