-added new Preferences Dialog for Appearance

-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

retroshare-gui/src/gui/common/rwindow.cpp

@@ -97,16 +97,14 @@ RWindow::restoreWindowState()
 QVariant
 RWindow::getSetting(QString setting, QVariant defaultValue)
 {
-  QString key = _name + "/" + setting;
-  return _settings->value(key, defaultValue);
+  return _settings->value(setting, defaultValue);
 }
 
 /** Saves a value associated with a property name for this window object. */
 void
 RWindow::saveSetting(QString prop, QVariant value)
 {
-  QString key = _name + "/" + prop;
-  _settings->setValue(key, value);
+  _settings->setValue(prop, value);
 }
 
 /** Overloaded QWidget::setVisible(). If this window is already visible and

retroshare-gui/src/gui/common/rwindow.h

@@ -28,7 +28,7 @@
 #include <QWidget>
 #include <QVariant>
 #include <QMainWindow>
-#include <config/rsharesettings.h>
+#include <gui/Preferences/rsharesettings.h>
 
 
 class RWindow : public QMainWindow