Added proximity feature set as FishKNNProx.java
Better fish and logging

Figured out what the heck I did in between "Realistic fish (finaly)
37f30b4f31" and the current head, and undid it.

Logging is much better now, less boilerplate and BTFLogger and children
can log repeatably from the Mason console.
Better fish and logging pt. 2

Fixed some bugs in the new logging