improvements PeersDialog

- save and load state of peer tree and splitter
- removed maximum length of dynamic dns line edit
- sort peers (only top level items) after internal value of state, not the name

cleaned some include files

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@3087 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/gui/PeersDialog.h

@@ -149,6 +149,8 @@ signals:
 		void startChat(QTreeWidgetItem* );
 
 private:
+		void processSettings(bool bLoad);
+
 		class QLabel *iconLabel, *textLabel;
 		class QWidget *widget;
 		class QWidgetAction *widgetAction;