Freeform Propagation Training - layerDelta Add not Set?

[autonull]

encog-java-core/src/main/java/org/encog/neural/freeform/training/FreeformPropagationTraining.java

Line 160 in 06bed74

fromNeuron.setTempTraining(0, layerDelta);

should this be:
fromNeuron.addTempTraining(0, layerDelta);

since the existing stored value is not always zero (from previous iterations of the same training).

unit tests still pass after this change.