Added equals implementation to FeedComponent

fixes #488

Items of removed feed weren't properly removed from queue

src/de/danoeh/antennapod/feed/FeedComponent.java

@@ -2,8 +2,8 @@ package de.danoeh.antennapod.feed;
 
 /**
  * Represents every possible component of a feed
- * @author daniel
  *
+ * @author daniel
  */
 public abstract class FeedComponent {
 
@@ -47,4 +47,20 @@ public abstract class FeedComponent {
      */
     public abstract String getHumanReadableIdentifier();
 
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        FeedComponent that = (FeedComponent) o;
+
+        if (id != that.id) return false;
+
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        return (int) (id ^ (id >>> 32));
+    }
 }