Simplewallet command names

[siklon]

In all of the command names, except "set_log", the words are seperated by a hyphen "-". It's trivial, but we should follow that paradigm.

[ghost]

wouldn't this be breaking some scripts that some people wrote? I think you would have to accept "set-log" and "set_log"

edit: latex made me dun goof

[fluffypony]

@Jebes yes it potentially would, which is why we should make changes like this now rather than later on when people are more reliant on things not changing;)

[fluffypony]

Fixed