[pkg-php-pear] Sponsor for php-swiftmailer

[Robin Gustafsson]

Hi Nicolas,

Regarding the review of this package, I want to add that
debian/control doesn't mention the team in Maintainer nor Uploaders.
Typically it'd have the team as Maintainer and yourself in Uploaders
(but the other way around is sometimes used instead).

> transitional package seems unneeded since at least Jessie
This is bug 878656.

After that, there's only one more open bug for this package - my
wishlist bug, 951605... :-)

Regards,
Robin