fixes for direct routed component under mpirun
Use RDTSC by now.
Only use RDTSCP if supported by the processor.
Only use RDTSCP if supported by the processor.

Conflicts:
	opal/include/opal/sys/amd64/timer.h
Merge branch 'master' of github.com:open-mpi/ompi
Adding of missed time measurement scripts in tarball
Merge pull request #291 from nkogteva/master

Adding of missed time measurement scripts in tarball
Merge branch 'master' of github.com:open-mpi/ompi
Merge branch 'master' of github.com:bosilca/ompi into topic/enable_atomics