remove  MSG_file_ls()
Merge branch 'master' of git+ssh://scm.gforge.inria.fr//gitroot/simgrid/simgrid
Change MSG_file_unlink() return type
Rename msg_storage_priv->host by msg_storage_priv->hostname
Improve MSG_file_read() and MSG_file_write()
Cosmetics: move SimGrid copyright on top.
Update copyright headers.
Check if MAP_ANONYMOUS is defined after including sys/mman.h.

Some systems define MAP_ANON instead of MAP_ANOYMOUS.
Fix MSG_file_rcopy() and MSG_file_rmove()
[mc] Initialize expression->ops before calling mc_dwarf_expression_init.
Start documenting how lmm works
Add more debug
Fix bug #17132 (surf.c:366: The Impossible Did Happen (yet again)).

This occured only when a fatpipe had two (or more) flows with different bandwidth bounds. Only one would get bandwidth and because of early termination in this loop, the constraint was never considered ever again, hence the other flow would stay with a share of 0.
Use more explicit variable names and add a bit of debug.

There is still something "wrong" with this code, which is that it aborts whenever an action gets a share of 0 (in which case I am not able to assign it a completion date and insert it into the calendar). This could happen but is more likely to be a bug in lmm or in surf, which is why I leave it as such for the moment.
Distinguish between time precision and sharing precision.
- Set up two distinct configuration variables and use them in the right places
- Set them to legacy values especially in smpirun
- Revalidate tesh files accordingly (only the "Configuration change" message)
Have an informative final message.
[mc] Make snapshots compatible with SMPI privatization of global variables

Not handled yet:
* State comparaison is not handled in this commit;
* Address process/snapshot translation support.

Still to do: make a clean API for the privatization.
Older gcc warns that variable may be uninitialized. Initialize it.
Fix memory leak on file_unlink.
[mc] Fix MC_free_snapshot (NP reading NULL snapshot->privatization_regions)
Factorize initializations for Action constructors.

Also initialize m_hat to NOTSET.