mod_delegation: fix bare jid disco nesting bare jid info discovery hook has been accidentally removed a while ago, as a result disco nesting for bare jids was not working anymore.

2c07bcf56a36d6e74dc0f5422e89bd61f4d31239 0.8-diverge
1656d4fd71d07aa3a52da89d4daf7723a555e7dd last-google-code-commit