lemon/concepts/heap.h
2008-07-15 Reorganize header files (Ticket #97)
2008-07-13 Apply unify-sources.sh to the source tree
2008-07-11 Cleaning of heap test and bug fix in heap concept check (ticket #100)
2008-03-30 Improvements in the heap concept
2008-02-07 Bfs/Dfs/Dijkstra and their deps ported from svn trung -r 3441.