Small improvements: plug-in instance object dereferenced on deactivation. 'gajim.plugin_system' logger doesn't set level DEBUG by default (have to use command-line option '-l' from now on).

src/plugins/helpers.py

@@ -35,11 +35,11 @@ Logger for code related to plug-in system.
 '''
 
 consoleloghandler = logging.StreamHandler()
-consoleloghandler.setLevel(1)
+#consoleloghandler.setLevel(1)
 consoleloghandler.setFormatter(
         logging.Formatter('%(levelname)s: %(message)s'))
         #logging.Formatter('%(asctime)s %(name)s: %(levelname)s: %(message)s'))
-log.setLevel(logging.DEBUG)
+#log.setLevel(logging.DEBUG)
 log.addHandler(consoleloghandler)
 log.propagate = False
 

src/plugins/pluginmanager.py

@@ -195,6 +195,7 @@ class PluginManager(object):
 		# removing plug-in from active plug-ins list
 		self.active_plugins.remove(plugin_object)
 		plugin_object.__class__._active = False
+		plugin_object.__class__._instance = None
 		del plugin_object
 		
 	def deactivate_all_plugins(self):