Update javadocs on JavaFxSubscriber

Author: thomasnield

src/main/java/rx/subscribers/JavaFxSubscriber.java

@@ -22,12 +22,17 @@
 
 public enum JavaFxSubscriber {
     ;//no instances
-
+    /**
+     * Turns an Observable into a JavaFX Binding. Calling the dispose() method will handle the unsubscription. 
+     */
     public static <T> Binding<T> toBinding(Observable<T> obs) {
         BindingSubscriber<T> bindingSubscriber = new BindingSubscriber<>(e -> {});
         obs.subscribe(bindingSubscriber);
         return bindingSubscriber;
     }
+    /**
+     * Turns an Observable into a JavaFX Binding. Calling the dispose() method will handle the unsubscription. 
+     */
     public static <T> Binding<T> toBinding(Observable<T> obs, Action1<Throwable> onErrorAction ) {
         BindingSubscriber<T> bindingSubscriber = new BindingSubscriber<>(onErrorAction);
         obs.subscribe(bindingSubscriber);