- Add a xbt wrapper for simcall_mutex_trylock (asked in [#17878])
- Add two new log appenders : rollfile and splitfile. Patch by Fabien Chaix.
Build System
+ * Require g++ v4.7 at least to not speak prehistorical C++.
* Tracing is now always enabled (no way to turn it out)
* Move headers around to sort them out on installed systems:
- instr/instr.h -> simgrid/instr.h