Forward and backward algorithms.
Fixed backward algorithm.
Implemented Viterbi algorithm.
Merging markov_chain.py and markov_forback.py into markov.py.
Undone some changes.
Again.
Removed merged file. Moved changes to markov_chain.py
Modified input methods in hmm.py.
Viterbi implemented and corrected.
Baum-Welch implemented. All other algorithms corrected and tested.