UPDATE: remove excess 'pithos' code

* Remove excess 'pithos' code that has nothing to do with the pandora module that we're using
* pithos.pandora code is current to repo [2b35f36b91 on 2013-12-19]

* NOTE: 'pithos' repo @ https://github.com/pithos/pithos
UPDATE: minor code, meta-info, and UI cleanup