NEW in 2.25.90
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+ - Rewrite Voice/Video call UI, and use farsight2 instead of stream-engine. (Sjoerd Simons).
- Add libnotify support (Jonny Lamb, Elliot Fairweather).
- Add EmpathyContactSelector (Jonny Lamb, Elliot Fairweather).
- Renamed G_STR_EMPTY to EMP_STR_EMPTY (Jonny Lamb).