This fixes the graph primitives that were only model of
AABBPrimitiveWithSharedData, and also remove the artificial compatibility
with deprecated primitives that are not needed since we want to make users
use the new method.
Successfully tested in CGAL-4.3-Ic-107
One example on the platform i686_Linux-2.6_g++-4.1.2_CentOS-5.1-O3 indicates
an error, but after checking it is a floating point computation threshold
issue. The example expects an error to be below 1e-10 and it is 1.1e-10.
Approved by the interim release manager
Sébastien Loriot