Hero Barrier in big patch

Important news： 1.when you switch your hero,you can judge your rate of progress by the amount of flag shown on the stage interface. 2.when you use new hero to finish stage you have already passed,you can still get full reward as your first time passing the stage. We fixed belowing bugs: 1.when you minimize game interface and come back,the countdown of chest refreshing was not properly displayed,now it's fixed. 2.we added gold display in gear purchasing interface. 3.maximum of hero attributes increase up to 9,999 4.maximum of gold increase up to 99,999,999 5.added cofirm interface when buying new hero 6.strength attributes training game added something new! 7.fixed couple of bugs in spirit-stone skill 8.fixed bug when you rapidly press some buttons and game crush,now press as fast as you can! 9.fixed bug in couple of stages,you cant pass the stage even if you killed all minions 10.improved pause button trigger.