-moved some Settings from General to Appearance ( Language, Style, stylesheet
-added checkbox for Start RetroShare with System start in GeneralDialog
-moved Rsharesettings to Preferences folder to find bether
-added new RSettings source
-clean uped some old code stuff in MainWindow which is not more needed
-replaced in MainWindow PreferencesWindows open function with new one.
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@684 b45a01b8-16f6-495d-af2f-9b41ad6348cc
