New upstream release, Command UI

* Based on 2.10.9 upstream
* Command UI
* XMPP URI previews show names in notifications and conversation list
* XMPP URI names for MUCs come from bookmarks
* Fixes for URI clipboard copying to match the clickable links
* Long-press context menu on list of conversation for quick actions
* Show full JID for private MUC when advanced mode is on
* Fix some dialler integration crashes
* Support mute during dialler integration calls
* Use more familiar ringback for USA and Canada users
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