* New module: sparse graph structure with basic algorithms. [AL]
* Display more information on backtraces: source line & function names are
now displayed just like valgrind does (rely on addr2line tool) [MQ]
+ * New function: xbt_display_backtrace(). Sweet while debuging [MQ]
SURF:
* complete rewrote of the KCCFLN05 workstation model. It is now an