Started working on a better group peer list
Nice bindings for group peers and support for muting/ignoring
Merge remote-tracking branch 'origin/master' into enhanced-group-peer-list
Bindings for the mute/ignore menuitem headers
GroupPeerCollection should be an ObservableCollection
Merge remote-tracking branch 'origin/master' into enhanced-group-peer-list
A new way of keeping track of peers

Apparently peer numbers are inconsistent, how annoying.
I know this is really ugly but there is no other way for now. Submit
your complaints here: https://github.com/irungentoo/toxcore
Small optimisation, don't create a new GroupPeer instance if it's not needed
Sort peer names alphabetically