Inactive maintainer removal (part 4)

[Jon Turney]

After improving the tool I've been using, so it can better spot inactive 
co-maintainers, I've removed the following co-maintainerships:

-cmake                      Tony Kelman/Marco Atzeri/Lemures Lemniscati
+cmake                      Marco Atzeri/Lemures Lemniscati
-gengetopt                  Rafel Amer/Brian Inglis
+gengetopt                  Brian Inglis
-man-db                     Chris J. Breisch/Achim Gratz
+man-db                     Achim Gratz
-nccmp                      Remik Ziemlinski/Marco Atzeri
+nccmp                      Marco Atzeri
-python-docutils            Tony Kelman/Marco Atzeri
+python-docutils            Marco Atzeri
-python-h5py                Chris LeBlanc/Marco Atzeri
+python-h5py                Marco Atzeri
-python-jinja2              Tony Kelman/Marco Atzeri
+python-jinja2              Marco Atzeri
-python-sphinx              Tony Kelman/Marco Atzeri
+python-sphinx              Marco Atzeri

All of whom have been inactive for a long time, and didn't respond to 
attempts to contact them. In the majority of cases, these should 
probably been dropped years ago as unresponsive, rather than kept on as 
co-maintainers.

Additionally, I have orphaned the following package:

p7zip                       Tony Kelman

Consequently, these maintainers' (long unused) ssh keys are also disabled.

7z is occasionally useful, so I don't think it is an immediate candidate 
for removal.