Fix #1158: Allow mail addresses with different full names

[skruppy]

As stated in http://www.sogo.nu/bugs/view.php?id=1158, the the MailFieldNames fields (like mail) can only contain a plain E-Mail address, without a full name like "Dude" [email protected]. If the value contains never the less a full value, something strange happened:

• Since SOGo 2.2.1: The result would have been "Bro" <"Dude" [email protected]>
• Before SOGo 2.2.1: The result would have been "Bro" [email protected] therefore the only sane values have been without a full name and "<>".

Now it is possible to have

• E-Mail addresses without a full name
• E-Mail addresses with a different full name

to accomplish this, without breaking backward compatibility for former sane configurations, the new behavior only kicks in if the value contains a "<". Depending on it's position, one of the two new E-Mails address types is selected. The mapping is as following:

Input	Result	Users fullName
[email protected]	"Bro" [email protected]	"Bro"
[email protected]	[email protected]	""
[email protected]	[email protected]	"Bro" or ""
"Dude" [email protected]	"Dude" [email protected]	"Bro" or ""

[extrafu]

Nice work, this will likely be integrated in SOGo v2.5.

[dasJ]

[Neustradamus]

@alinto: What is the status of this PR?