when all treasures are found, suggest user to occupy the castle
disallow user to attack castle if he has not found all treasures
bugfix: hero's name is wrong
when offenser enter a passed tile, facility will not attack
defensive hero not in building will attack offensive hero 1 tile nearby
show move animation when defensive hero attack nearby tiles
add function to calculate average iq of attack heroes
add morale
increase morale after each move
modify labels' fontsize and position
add clue menus in attack mode
add morale info into MainLayer's ui, add clue class
decrease morale if clue is used