Fixed big problem with updating connection weights from program (on uniselector action). GUI was reupdating, and therefore changing the values just changed by the uniselector. The net effect was that the weights could never switch their algebraic signs, due to how weight and switch are managed internally. Fixed by replacing the valueChanged signal in the comboboxes (resposive to any change) to editingFinished (responsive to changes in the GUI only). Fixes #61 Fixes #53