* Require g++ v4.7 at least to not speak prehistorical C++.
* Require Boost 1.48 (for signal2 component).
* Tracing is now always enabled (no way to turn it out)
+ * Remove GTNetS. It was not working anyway.
* Move headers around to sort them out on installed systems:
- instr/instr.h -> simgrid/instr.h
- instr/jedule/* -> simgrid/jedule