Added support for Auto-login

- added checkbox in start dialog including warning (autologin not safe)
- added check box in gen setting to disable autologin on shutdown

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@2689 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/gui/StartDialog.h

@@ -60,6 +60,11 @@ private slots:
 
 	void closeinfodlg();
 	void loadPerson();
+
+	/**
+	 * Warns the user that autologin is not secure
+	 */
+	void notSecureWarning();
 	
   void on_labelProfile_linkActivated(QString link);
   void on_labelInfo_linkActivated(QString link);