lemon/bits/base_extender.h
2008-07-14 Remove todo-s and convert them to trac tickets
2008-09-02 Bug fix + doc improvement in UndirDigraphExtender (ticket #141)
2008-07-15 Reorganize header files (Ticket #97)
2008-07-13 Apply unify-sources.sh to the source tree
2008-03-21 Happy New Year! (Update Copyright dates)
2008-01-20 Port ListDigraph and ListGraph from svn -r 3433