Added new option for GxsForums and FeedReader - Open all forums/feeds in new tab.

Option=on (standard)
- no standard tab
- new tab by single click
- no menu entry "Open in new tab"

Option=off:
- standard tab (not closeable)
- open in standard tab by single click
- menu entry "Open in new tab"
- open new tab with middle mouse button


git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6060 b45a01b8-16f6-495d-af2f-9b41ad6348cc

plugins/FeedReader/gui/FeedReaderDialog.h

@@ -50,8 +50,10 @@ protected:
 	bool eventFilter(QObject *obj, QEvent *ev);
 
 private slots:
+	void settingsChanged();
 	void feedTreeCustomPopupMenu(QPoint point);
 	void feedTreeItemActivated(QTreeWidgetItem *item);
+	void feedTreeMiddleButtonClicked(QTreeWidgetItem *item);
 	void openInNewTab();
 	void newFolder();
 	void newFeed();
@@ -75,6 +77,7 @@ private:
 	void getExpandedFeedIds(QList<std::string> &feedIds);
 	void updateFeeds(const std::string &parentId, QTreeWidgetItem *parentItem);
 	void updateFeedItem(QTreeWidgetItem *item, FeedInfo &info);
+	void openFeedInNewTab(const std::string &feedId);
 
 	void calculateFeedItems();
 	void calculateFeedItem(QTreeWidgetItem *item, uint32_t &unreadCount, bool &loading);