docs(add) help
docs(commands) help
docs(net-diag) help + name

@jbenet @whyrusleeping

Docs read net-diag. It seems the command was previously registered as
diag. Which do you prefer?
docs(log) help

making docs match command:
        name -> subsystem. Is the desired name?
docs(ls) help
todo(ls)

@jbenet
fix(mount) add argument
add fixmes
docs(name/publish/resolve) help
refactor(name, pub, resolve) separate files
chore(pin) rm commented code
pin/unpin -> add rm

addresses
https://github.com/jbenet/go-ipfs/pull/263#issuecomment-62242970