rename this repo to go about simpleiot

[cbrake]

thinking more -- could archive this repo so it can still be used and simply start a new one -- then nothing should break.

[cbrake]

I've decided to leave as is. The repo includes both frontend and backend code (go/elm), so its not really pure go, and who knows -- we may end up with a different language for the backend some day, so I think simpleiot is the most flexible and descriptive, even though the go imports look a little ugly. But, with goimports integration in editors, most developers don't manually type out import paths anymore.

On gophers slack, I was advised by one person not to use a vanity import url, like many go projects do: