add permission for objects

Conflicts:
	xadmin/plugins/bookmark.py
	xadmin/templates/xadmin/base_site.html
	xadmin/views/base.py
Finish batch change plugin.
Add site menu plugin to change site menu style in settings.
Add site menu plugin to change site menu style in settings.
Merge branch 'master' of github.com:sshwsfc/django-xadmin

Conflicts:
	xadmin/static/xadmin/css/xadmin.main.css
	xadmin/templates/xadmin/includes/sitemenu_accordion.html
Update i18n .po files.
I18N files update.
Merge remote-tracking branch 'source/master'