show a little more of the revision string.

--HG--
rename : dlib/manifold_regularization/function_objects.h => dlib/graph_utils/function_objects.h
rename : dlib/manifold_regularization/function_objects_abstract.h => dlib/graph_utils/function_objects_abstract.h

and into graph_utils.

--HG--
rename : dlib/manifold_regularization/graph_creation.h => dlib/graph_utils/edge_list_graphs.h
rename : dlib/manifold_regularization/graph_creation_abstract.h => dlib/graph_utils/edge_list_graphs_abstract.h
rename : dlib/manifold_regularization/ordered_sample_pair.h => dlib/graph_utils/ordered_sample_pair.h
rename : dlib/manifold_regularization/ordered_sample_pair_abstract.h => dlib/graph_utils/ordered_sample_pair_abstract.h
rename : dlib/manifold_regularization/sample_pair.h => dlib/graph_utils/sample_pair.h
rename : dlib/manifold_regularization/sample_pair_abstract.h => dlib/graph_utils/sample_pair_abstract.h

a collapsed subsection.

a distance argument.

- Simplified some of the code a bit by making it use ordered_sample_pair
- Broke backwards compatibility, the syntax for passing order_by_distance
  and order_by_index to std::sort() is now slightly different since these
  functions are now templates.  This allows them to work on any kind of
  sample_pair or ordered_sample_pair object.

value instead of float.

of a block of memory.

object.

to detect invalid serialization.