-------------------
* Created method for current products on sale.
* Updated inventory to also include products on sale
* set_default_weapon() - eRepublik should return list with all available weapon qualities, but when a battle is just launched, they return only dict with barehands
* fight() - no longer calls self.set_default_weapon()
* find_battle_and_fight() - now calls self.set_default_weapon() just before fighting
* update_war_info() - returns previous battle list if responses 'last_updated' isn't more than 30s old
* get_battle_for_war(war_id) - returns Battle instance for specific war, if battle is active for given war
* Citizen.get_raw_surplus() fixed and moved to Citizen.my_companies.get_wam_raw_usage()
* Implemented division switching
* improved multi bomb deploy with auto traveling,
* Citizen.fight() simplified battle data gathering logic -> Citizen.shoot logic improved