Fixed several warnings and added error checking to get_system_cpu_times()  in case of host_statistics() call failure.
Fixed several warnings and added error checking to get_system_cpu_times() 
in case of host_statistics() call failure.



git-svn-id: 9f18dd852162ff6c59c5533c0914e9cf81af9e7c@739 d8a29897-7e4b-0410-a74a-8bb4c295346f

elventear/psutil,elventear/psutil