Added OS.getPID, .uName and .getHostByName.
Added OS.getPID, .uName and .getHostByName.

Note: OS.uName currently is not supported in Windows.

eregon/mozart-graal,mistasse/mozart-graal,mistasse/mozart-graal,mistasse/mozart-graal,mistasse/mozart-graal,eregon/mozart-graal,mistasse/mozart-graal,eregon/mozart-graal,eregon/mozart-graal,eregon/mozart-graal,eregon/mozart-graal