Freie Universitaet Berlin (Germany), Martin-Luther-University Halle-Wittenberg
(Germany) and RISC Linz (Austria) as they transfer the copyright to other
sites.
and update accordingly include directives. Update testsuite
remove unneed CMakeLists.txt from AABBtree testsuite
Remove Triangle_3_Plane_3 intersection from AABB_tree (I define it in Intersections_3 some days ago, thus a conflict)