Use new IUpdater API

[braun-steven]

Dl4j v0.9.0 introduced a new way to set update parameter with

NeuralNetConfiguration.Builder().updater(new Sgd(0.1))

instead of

NeuralNetConfiguration.Builder().updater(UPDATER.SGD).learningRate(0.1)

The weka wrapper have already been written in the updater package.

Due to a bug in dl4j v0.9.1 the new API cannot be used yet. Maybe we need to wait until v0.9.2.

TODO:

• The GUI-Descriptions have to be enabled here and here
• All layers need to drop deprecated code that set specific parameters which are updater related
• Layers and NeuralNetConfiguration must allow to set an updater of the updater package