Fix typo
Use proper indention in facts.rb
Always convert hostname to lowercase

The `system-name` attribute of a NetApp filer can contain uppercase
letters but the normal convention of a hostname and a fqdn is to be in
lowercase letters.

Explicitly convert hostname and fqnd in lowercase
Rename memory and cpu type facts

We should try to map the device attributes as closely to well-known
facter facts as possible. Facter 1.7. has a `memorysize_mb` fact to
reflect the size in MiB as a number with no unit and a `memorysize`
fact to store the value with a proper unit (in this case "MB"). Use
these two facts to hold the memorysize of a NetApp device.

Facter 1.7 does only have a `processor<INDEX>` fact, but no `processor`
fact. But it defines another fact called `hardwareisa` that contains
the processor type.

Use the name `hardwareisa` to hold the current CPU type on a NetApp
devices and drop the `processor` fact.
Add more wellknown facter facts for NetApp devices
Merge pull request #46 from stschulte/refactor_facts

Refactor facts.