[Pkg-roundcube-maintainers] Bug#643707: Bump to roundcube-0.6

[Niccolò Belli]

Package: roundcube
Version: 0.5.4+dfsg-1
Severity: wishlist

Released version 0.6. It would be nice to have roundcube-0.6 packages, 
at least in experimental or in git.debian.org.

Thanks,
Niccolò