Add _POWER6 to some condifitonal code compilations; trim line endings from description strings for better formatting in native_avail. Now supports group identifications and finds events, but still doesn't count.
Add _POWER6 to some condifitonal code compilations;
trim line endings from description strings for better formatting in native_avail.
Now supports group identifications and finds events, but still doesn't count.

pyrovski/papi,arm-hpc/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi