new: containsAsFace for polytopes; fix: canonicalize() in gfanlib
chg: polymake.lib, divisors.lib

renamed polymake.lib to oldpolymake.lib
divisors.lib will now load polymake.so if it has not been loaded yet
fix: divisors.lib getDualCone->dualCone
chg: allowing minkowski sums between polytopes and cones
chg: new, clean gfanlib

the old gfanlib version had some makeshift code written by me inside of it.
As Anders has no intention to fully support some features I added in a makeshift manner
(because they are redundant for the computations done in gfan)
and polymake already has them properly coded,
I removed the makeshift features from the code
and will outsource them to a new cone type for people who have polymake installed.
new: containsAsFace for polytopes; fix: canonicalize() in gfanlib
chg: new, clean gfanlib

the old gfanlib version had some makeshift code written by me inside of it.
As Anders has no intention to fully support some features I added in a makeshift manner
(because they are redundant for the computations done in gfan)
and polymake already has them properly coded,
I removed the makeshift features from the code
and will outsource them to a new cone type for people who have polymake installed.
new: containsAsFace for polytopes; fix: canonicalize() in gfanlib
chg: new, clean gfanlib

the old gfanlib version had some makeshift code written by me inside of it.
As Anders has no intention to fully support some features I added in a makeshift manner
(because they are redundant for the computations done in gfan)
and polymake already has them properly coded,
I removed the makeshift features from the code
and will outsource them to a new cone type for people who have polymake installed.
new: containsAsFace for polytopes; fix: canonicalize() in gfanlib
chg: new, clean gfanlib

the old gfanlib version had some makeshift code written by me inside of it.
As Anders has no intention to fully support some features I added in a makeshift manner
(because they are redundant for the computations done in gfan)
and polymake already has them properly coded,
I removed the makeshift features from the code
and will outsource them to a new cone type for people who have polymake installed.
new: containsAsFace for polytopes; fix: canonicalize() in gfanlib
chg: new, clean gfanlib

the old gfanlib version had some makeshift code written by me inside of it.
As Anders has no intention to fully support some features I added in a makeshift manner
(because they are redundant for the computations done in gfan)
and polymake already has them properly coded,
I removed the makeshift features from the code
and will outsource them to a new cone type for people who have polymake installed.
new: containsAsFace for polytopes; fix: canonicalize() in gfanlib
chg: new, clean gfanlib

the old gfanlib version had some makeshift code written by me inside of it.
As Anders has no intention to fully support some features I added in a makeshift manner
(because they are redundant for the computations done in gfan)
and polymake already has them properly coded,
I removed the makeshift features from the code
and will outsource them to a new cone type for people who have polymake installed.
fix: bad use of ordering wp

ring ordering wp is used at several places, even though it might be
called with weights that are not permitted (with zero weights).
fixed it by using matrix ordering instead, whose order matrix contains
the weight vector as its first row.