[aldafu] quit_on_roster_x_button advanced setting [I reverted logic]

src/common/config.py

@@ -146,6 +146,7 @@ class Config:
 		'tabs_close_button': [opt_bool, True, _('Show close button in tab?')],
 		'avatar_width': [opt_int, 52],
 		'avatar_height': [opt_int, 52],
+		'quit_on_roster_x_button': [opt_bool, False, _('If True, quits Gajim when X button of Window Manager is clicked. This option make sense only if trayicon is used')], 
 	}
 
 	__options_per_key = {

src/roster_window.py

@@ -1505,7 +1505,7 @@ _('If "%s" accepts this request you will know his status.') %jid)
 	
 	def on_roster_window_delete_event(self, widget, event):
 		'''When we want to close the window'''
-		if self.plugin.systray_enabled:
+		if self.plugin.systray_enabled and not gajim.config.get('quit_on_roster_x_button'):
 			self.tooltip.hide_tooltip()
 			self.window.hide()
 		else: