update changelog

update changelog

update changelog

2.019 fix some cases when monitor exits too early

Merge branch 'dev'

Merge branch 'dev'

2.016 add proxy_image option

2.015 misc update

2.014 support add multiple tasks at once

fix rename bug

2.013 fix bug when page count >= 1000 fffonion#23

auto rename if original file exists fffonion#21