[Debian-science-sagemath] Sage 7.6 upload for RC bugfix and GAP 4.8.7 in unstable

[Tobias Hansen]

Hi,

I just prepared sagemath 7.6-3 including the Sphinx 1.5 patch (fixing
#866166) (in the branch 7.6-bugfix). Then I noticed that gap 4.8.7 was
uploaded to unstable yesterday, so we need libgap 4.8.7 before we can do
anything else (#869160). This also means that sage in unstable might be
broken now until we have a new libgap and sage package uploaded.

Best,

Tobias