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.
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summary: Extra verbose logging of sent and received
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Summary
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Sometimes it is useful to get the raw XML logs from clients for
debugging purposes, but some clients don't expose this.
This module logs dumps everything sent and received into debug logs, for
debugging purposes.