add sentences(), string_sanitize(); fix for dict_to_vector() to deterministically sort vector
implements vectorize_results() and build_training_examples()
add reshape_thetas()
refactor initialization parameters
WIP: debugging input matrix, which currently has an extra dimension [[[x,y,z],[a,b,c]]]
Merge branch 'master' of https://github.com/punkrockpolly/babel-brain