Update simplesmtp version
Bump version
Revert "增加QQ邮箱"

This reverts commit 8690546c38257ffdf2d869e3203e7b8e6e1d8564.
增加QQ邮箱的支持

顺便修改.gitignore
update README on repo

andris9/Nodemailer#157
simplified 'service' usage
updated version number
Add forgotten Mailjet in SMTP services list
修改测试代码