svn merge
'^/branches/experimental-packages/Triangualtion_2-projection_traits/Triangulation_2@48316'
'^/branches/experimental-packages/Triangulation_2-projection_traits/Triangulation_2'
.
I have merged the Triangulation_2 part of the branch
experimental-packages/Triangulation_2-projection_traits into the trunk.
This adds two files (traits classes), and a small patch to
Contrained_triangulation_2 (pass geomtraits by const ref instead of a
copy).
T2 testsuite locally launched successfully.
This adds requirements to TriangulationTraits2 concept :
Less_x_2 and Less_y_2 predicates.
Also fixes a few bugs in RT2 (hidden points were sometimes forgotten
in degenerate dimensions.)