Merge pull request #188 from beittenc/update_dns_sync_docs

Updating dns sync docs
License Update to MIT
Allow TTL to be specified when using `sl cci dns sync`
Remove hardcoded references to DNS TTL of 7200

Also more consistent with existing DNS docblocks.
Merge pull request #191 from briancline/cci-dns-sync-ttl

Allow TTL to be specified when using `sl cci dns sync`
Adds Filtering by label for SSH key listings
Merge pull request #193 from sudorandom/sshkey_resolve_id

Adds Filtering by label for SSH key listings
Adds `sl hw` as an alias to `sl server` for hardware servers
Merge pull request #194 from briancline/hw-alias

Adds `sl hw` as an alias to `sl server` for hardware servers
Merge pull request #190 from sudorandom/master

License Update to MIT
Syntax fix in the example for ordering hardware