Feature/privacy

This addresses two main issues, #319 (reduce the user PII footprint in data storage) as well as update some of the docs and functions to reflect current requirements. (e.g. make now builds all in one step, docs no longer refer to install.bash, etc.)
Hrm. good point. That comes from @nchapman & @pdehaan. 

Gentlemen, does it make sense to do that, possibly via the travis config?