- use the Has_timestamp operator in Compact_container
- add partial specialization to classes that need the time stamp (i.e.
Mesh_vertex_base, Compact_mesh_cell_base_3 and Mesh_cell_base_3)
- remove "ts" from classes where they were actually needed for compilation
purpose only (i.e. Kd_tree_node and Triangulation_ds_cell_base_3)
- rename "ts" to time_stamp_
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.