解决邮件发送报错问题,和标题邮件标题乱码问题.

[gnusec]

1. 由于config文件里头获取的参数type都是unicode,传入底层的getaddrinfo函数后会报错 getaddrinfo() argument 2 must be integer or string. 所以这里给port做个int转换.
2. 邮件标题是中文的, 需要做一次编码, 避免邮件标题乱码.

[coveralls]

Pull Request Test Coverage Report for Build 427

• 1 of 3 (33.33%) changed or added relevant lines in 1 file are covered.
• 14 unchanged lines in 7 files lost coverage.
• Overall coverage increased (+0.02%) to 41.641%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
cobra/send_mail.py	1	3	33.33%

Files with Coverage Reduction	New Missed Lines	%
cobra/send_mail.py	1	19.23%
cobra/log.py	2	44.93%
cobra/init.py	2	29.11%
cobra/cve.py	2	81.5%
cobra/export.py	2	60.0%
cobra/pickup.py	2	33.06%
cobra/utils.py	3	35.77%

Totals
Change from base Build 426:	0.02%
Covered Lines:	1609
Relevant Lines:	3864

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💛 - Coveralls