删除走势效果图
修改网站名称和logo
Merge branch 'master' of github.com:songjiayang/bitwin into issue_103
delete Calculator-49f94ce726674220c747ca840e012d5e.png
Merge branch 'master' of github.com:songjiayang/bitwin into registration

Conflicts:
	app/views/home/index.html.slim