Added patch from Daniel Trebbien

[SVN r65593]
Fixed const issue on VC++ 8; fixes #4715

[SVN r65836]
Clarifying references to MST in Dijkstra's SP algorithm.


[SVN r65939]
Fixed documentation of distance map; fixes #4737

[SVN r65963]
Clarified docs further; fixes #4731

[SVN r65964]
Repeating edge insertions (up to a limit) when they fail in generate_random_graph; fixes #4758

[SVN r66097]
Fixed remove_edge_if and clear_vertex for subgraphs; commented out remove_vertex; refs #4752; fixes #4753

[SVN r66098]
Merged patch from #4631 and made appropriate doc changes; fixes #4631

[SVN r66099]
Repaired copy_component() using suggestion from Christopher Alfeld; fixes #4793

[SVN r66203]
Fixed signature of copy_one_vertex(); refs #4793

[SVN r66204]
Link fixes.


[SVN r66273]
Applied patch from Daniel Trebbien

[SVN r66286]
Removed access to (unused) edge id attribute, also making that attribute optional; fixes #4843

[SVN r66528]
Fixed typo; fixes #4851

[SVN r66559]
Applied patch from #4887 -- thank you for the bug report and patch; fixes #4887

[SVN r66707]
Fixed bundled graph properties in filtered_graph; fixes #4914

[SVN r66900]
Fixed up computation of property types; fixes #1021

[SVN r66907]
Fixed complexity of Dijkstra's algorithm; fixes #4852

[SVN r66960]
Changed to Boost.Filesystem v3

[SVN r67008]
Put in more checks to avoid seg faults

[SVN r67010]