packaging needs some work

[7yl4r]

the planned package/module organization is not as intuitive as envisioned during planning. A new organization strategy in which I can actually remember lines of code is needed.

• Option#1: more strictly standardized module names so that we know what to expect for each sub-package. I.e., the sub-structure of 'PA', 'Interaction', and other sub-modules match as closely as possible.
• Option#2: less rigid structure to reduce sub-packaging. Visualization modules get more descriptive names, and less effort to break out sub-packages is made. Thus we get something more like PAbarChart.plot() in place of PA.timeSeries.barChart.plot()

Eh, I'm not sure what to do.