Example config for send-email with Gmail.  You can put this in
akaros-repo/.git/config.

If you use the same email account for multiple projects, you can put all of the
settings except the 'to' in your global ~/.gitconfig file.

[sendemail]
	smtpEncryption = tls
	smtpServer = smtp.gmail.com
	smtpUser = YOUR_ADDRESS@gmail.com
	smtpServerPort = 587
	smtpPass = YOUR_PASSWORD
	suppresscc = self
	annotate = true
	confirm = always
	to = akaros@googlegroups.com