Changed default NSID in get-feature function. Fixed format of LBA range output

Changed default NSID in get-feature function.  Fixed format of LBA range output

- Changed default NSID to 1 in get-feature function.   Some features
require a valid NSID (i.e. lba range type)
- Fixed format of LBA range output
- Added description to the attributes field in LBA range output
- Changed default NSID to 0xffffffff in get_log (Matches help
documentation now)