Two quick tweaks

Excellent n-dim venn-esque visualization, Tony!


In this fork:
1) sampledata.js - will now use the current date instead of 2012-5-18 when generating last_login times so main.js will find some recent logins in the example dataset

2) vennison.js - mouseover on pies with zero membership no longer performs an irreversible black fill


Some ideas going forward:
  • Arc highlighting broke in an earlier update
  • Counts and labeling could probably be improved
  • Maybe a basic legend which is always visible
  • Trimming of null branches could simplify 4+ filter graphs