IMPORTANT: starting from this version, IDs WON'T be retained for categories and forums. Them being in two separate tables with possibly identical IDs messed up some imports. Other IDs will be kept just are fine.
+ added a conditional to set source DB charset with PunBB 1.3+ (props Rodolfo)
* fixed avatars and bans imports (props Rodolfo)
* fixed a bug with categories/forums when keys are retained