some thoughts/todos for the deeplearning trainers interface/architecture
extensive comments on Gibbssampler
more commets on gibbs sampler, started to implement bias updates
swaped meaning of WeightMatrix and WeigthMatrixView types in RAWMLPVIEW
added bias method to raw layerview, actualy the added implementation does not provide a view on the data, but only returns a copy which will lead to bugs
some more improvements on gibbs sampler
again large rework of gibbs sampler