GitLab

- cleaned up cmd help
- ipfs name publish [<name>] <ref>
- ipfs name resolve [<name>]
- publish validates <ref>
- both validate n args

cc @jbenet

    type NameSystem interface {
      Resolver
      Publisher
    }

should say it all.

cc @whyrusleeping

working on dag modification structures, factored out the data format into an importer subpackage and added more ipns tests

+ added recursive pinning func

for now, ipfs add output format:

    added <hash> <path>
    ...

(these commands will adhere to strict formats.)