2. Made the required changes in the concepts i.e. in "Snap_rounding_2/doc/Snap_rounding_2/Concepts/SnapRoundingTraits_2.h"
3. Added documentation for the reserve() method of Kd_tree
4. Deleted the un maintained olk kd_tree package
2. "Snap_rounding_kd_2.h" "Snap_rounding_traits_2.h" Added documentation and changed Copyright information and authors appropriately.
3. "kd_tree.h" Renamed the reserve_to_capacity() to reserve().
4. Snap_rounding_kd_new.h deleted
remove all mutable member variable and leave only one const_cast in the kd-kdtree private function
const_build. This function is called in const predicates when the tree is not already internally built.
The documentation has been update and a few typos fixed at the same time.
handle case when kdtree is empty for all 4 nearest neighbor search method
correct sort method of bounded_priority_queue (was sorting the complete vector even if not full)
==> fix the crash when k > nb input points
Modify test suite to handle these particular cases