Add points if listed in debian-security-support

[fweimer]

The debian-security-support package lists packages for which security support is no longer available within Debian, or for which support is explicitly disclaimed:

https://anonscm.debian.org/cgit/collab-maint/debian-security-support.git

I don't think it is necessary to analyse the reasons for lack of support too closely. Even if it does not apply to the current version, the reasons for lack of support rarely go away completely, so there is usually a risk of recurrence.