add save_user_stats method for stats savings
add save_user_stats method for stats savings

AlexBGoode/instabot,sudoguy/instabot,vkgrd/instabot,instagrambot/instabot,misisnik/testinsta,instagrambot/instapro,Diapostrofo/instabot,misisnik/testinsta,ohld/instabot,instagrambot/instabot,rasperepodvipodvert/instabot