auto encoders are now in neural package
renamings
removed auto encoders from feature package
factored constructing loss out into common.py
renamed linear model from GeneralizedLinearModel to Linear
some ignorings
adapted rim to revamp
Sparse filtering revamped, added notebook for mnist.
some tidiyng, e.g. removing imports
revamped rica and added notebook
Rica revamped.
sparse coding revamped and updated
changed order of methods in code to reflect order of calling
revamped gaussian processes.
added unsupervised loss helper
revamped rnns
fd rnns revamped