pianod 165 (new formula)

Added formula for [pianod](http://deviousfish.com/pianod/), version 165, a Pandora music server:

> `pianod` is an open-source Pandora client with line-oriented and Websocket TCP/IP control interfaces. A simple protocol makes for easy clients, mix scripting, integration with a home automation system, or use as multiple-user music system. `pianod` has a full-featured web-based interface that allows multiple listeners to view status and share control.
Can this test be modified to do something more substantial then e.g. `--version` or `--help`? See `cmake.rb` for an example of a formula with a good test. Thanks!