mod_client_management: Use grant id from key This is a minor tweak - it's faster and preserves compatibility with older data formats (that we don't necessarily want to be compatible with, but some of us have messy data stores and it pays to be a little more robust).

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summary: Remote Roster Management
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Introduction
============

This module adds support for [XEP-0321: Remote Roster Management] which
is commonly used to allow components such as transports to modify the
rosters of local users.