Fixed 'lmi mount delete', there is no '<device>' argument.
Added heuristics to translate device names to full device paths.

'mount create <device>' should follow the same rules as other storage commands
 - <device> can be DeviceID or various /dev/disk/by-id, /dev/disk/by-uuid paths.
Merge pull request #40 from jsafrane/devel/devconf-fixes

Two storage script fixes