Correctly parse display names having comments after the quoted string.

According to rfc2822 display names in the format: '"Example" (nested-comments)'
are valid and any existent nested comment should not be quoted.

Change-Id: Iaa3abef2307d2bf572ee7789574f2359549743b8
Reviewed-by: Matthew Vogt <matthew.vogt@qinetic.com.au>
Reviewed-by: Valerio Valerio <valerio.valerio@jollamobile.com>