switcher: Remove switcher from the list of applets

There's really no point to switching to the switcher when the BD key always
brings it up. It was also causing problems since we introduced switching back to
the previous applet by pressing BD while the switcher is up.

g13gui/applet/switcher.py

@@ -37,6 +37,7 @@ class Switcher(Observer):
 
     def onAppletChange(self, subject, changeType, key, data):
         self._applets = sorted(self._appletManager.appletNames)
+        self._applets.remove('Switcher')
         self._lv.model = self._applets
         self._lv.update()