[Feature Request] Sort Roaster/Contact list

[scento]

The contact list is currently by default sorted by the "online" status of the individual persons. Since this status changes frequently my contacts are "jumping". This effect often occurs after choosing a person to chat and _can lead to "chatting with the wrong person". To solve this problem it might be useful to provide a setting, which allows to choose which parameters should be used for sorting the contact list (e.g. first name, last name, online state, ...).

[crosser]

You might make contact entries not react to touch for half-second or a second after taking a new position.