Several RSS fixes:

- Fix possible redownload of torrents marked as read (Closes #927495)
- Properly remove RSS feed settings/history upon feed removal
- Fix possible crash in RSS Downloader dialog in debug mode

src/rss/rssfolder.cpp

@@ -184,6 +184,13 @@ void RssFolder::removeAllSettings() {
   }
 }
 
+void RssFolder::saveItemsToDisk()
+{
+  foreach(const RssFilePtr& child, m_children.values()) {
+    child->saveItemsToDisk();
+  }
+}
+
 QString RssFolder::id() const {
   return m_name;
 }