Add a recording random
Fix loop bug in learning/variational_inference_stochastic
Use file-dumper random
Fix randn file_random; global stuff
Debug print in storing randn
Import changes to python impl: from Wenzhe's branch, from Rutger's clone

Conflicts:
	.gitignore
	com/uva/estimate_phi.so
	com/uva/learning/mcmc_sampler_stochastic.py
	com/uva/learning/variational_inference_stochastic.py
	com/uva/network.py
	com/uva/preprocess/data_factory.py
	com/uva/sample_latent_vars.so
	com/uva/sampler.py
	main.py