Replace SubscriptionList with CompositeSubscription in RxPresenter

SubscriptionList is RxJava's internal type so we shouldn't use it. Note
that the APIs are nearly identical so this change doesn't require any
more work than switching the type.

nucleus/src/main/java/nucleus/presenter/RxPresenter.java

@@ -17,8 +17,8 @@
 import rx.functions.Action1;
 import rx.functions.Action2;
 import rx.functions.Func0;
-import rx.internal.util.SubscriptionList;
 import rx.subjects.BehaviorSubject;
+import rx.subscriptions.CompositeSubscription;
 
 /**
  * This is an extension of {@link Presenter} which provides RxJava functionality.
@@ -30,7 +30,7 @@ public class RxPresenter<View> extends Presenter<View> {
     private static final String REQUESTED_KEY = RxPresenter.class.getName() + "#requested";
 
     private final BehaviorSubject<View> views = BehaviorSubject.create();
-    private final SubscriptionList subscriptions = new SubscriptionList();
+    private final CompositeSubscription subscriptions = new CompositeSubscription();
 
     private final HashMap<Integer, Func0<Subscription>> restartables = new HashMap<>();
     private final HashMap<Integer, Subscription> restartableSubscriptions = new HashMap<>();
@@ -48,7 +48,7 @@ public Observable<View> view() {
 
     /**
      * Registers a subscription to automatically unsubscribe it during onDestroy.
-     * See {@link SubscriptionList#add(Subscription) for details.}
+     * See {@link CompositeSubscription#add(Subscription) for details.}
      *
      * @param subscription a subscription to add.
      */
@@ -58,7 +58,7 @@ public void add(Subscription subscription) {
 
     /**
      * Removes and unsubscribes a subscription that has been registered with {@link #add} previously.
-     * See {@link SubscriptionList#remove(Subscription)} for details.
+     * See {@link CompositeSubscription#remove(Subscription)} for details.
      *
      * @param subscription a subscription to remove.
      */