MSG
* Change the prototypes of action replay. Sorry for inconvenience,
but this is really more efficient this way.
+ * Kill the braindead MSG_task_refcount_dec() function. I guess nobody
+ ever managed to do anything useful with it.
SURF
* New model for multi-core CPUs. You can now use the core attribute to
* Introduce a new context factory "raw", highly inspirated from the
context factory, but using manually crafted functions in assembly to
do the work in an efficient manner.
+ * Allow to change the used context factory at run time, not only at
+ compilation time. Use --cfg=simix/context:raw for maximal speed.
XBT
* Add a new function xbt_dynar_to_array that transforms a dynar into a