Adding JGoogleAnalytics to Egonet. This should allow usage statistics to be reported to developers.
first effort on trying to do new alter ds

This creates new data structures like "Alter" and "AlterMatrix" that
forces EgoNet to stop treating alters as integers. Breaking out of that
paradigm is nasty, and I'm pretty much knee deep in the Statistics class
trying to break it of that integer habit. Kinda seems like once I can
get that class under control, everything else should fall into place.
working on statistics recoding
Merge branch 'new-alter-model' of https://github.com/martinb3/egonet into new-alter-model