lemon/concept/heap.h
2006-03-01 utility, invalid and traits moved to bits
2006-02-03 Unified copyright notices
2006-01-25 state setting function for heaps
2006-01-04 Happy new year to LEMON
2005-10-14 Added clear function to heaps and concept
2005-06-15 gcc-4.0 compatibility changes
2005-05-23 trunk/src/* move to trunk/