TribeConfig in GameConfig now has a list of TribeNamePair that is used for generating tribe names - each pair is a name (eg. Sun, Spear) and an appropriate icon
Can still override either name or icon from the TribeSpawners by specifying a name or icon (if unset the tribe will be spawned with random)
TribeCreate now picks a random name /icon on start (not hardcoded to tribe of the beard anymore)