progress 23.3.14
Added matrix object to handle neurons better.

A little bit more flexibility for hopfield networks, etc.
progress on backprop
working on rprop
reset to full, real batch update process
bug fix on line 79, system.js
working rprop

fixed ‘flat spot’ problem by adding 0.1 to the derivative of the
sigmoid function.
Moved activation and derivative functions to their own variables in neuron object.
Removed activation files.
Adding randomization function to bump a network out of a local minimum.
Merge pull request #2 from ajthor/backbone

Backbone