Sassconfig event is not prefixed (namespaced)

[gocom]

There is a slight global leakage in the plugin. Everything is prefixed nicely except for the sassconfig event. As you know, any public-facing entity in any plugin should be prefixed to avoid needless collisions:

add_privs('sassconfig');
register_tab('extensions', 'sassconfig', gTxt('SASS Configuration'));
register_callback('goe_sass_admin', 'sassconfig');