- added hp_cpu(), hp_mem_total(), mem_free(), mem_used(), os_version(), os_bin(), mac(), cpu(), os(), os_ver() methods - changed to 0.4 doc style
- added hp_cpu(), hp_mem_total(), mem_free(), mem_used(), os_version(), os_bin(), mac(), cpu(), os(), os_ver() methods - changed to 0.4 doc style