reg
implement simple selection policy for Gibbs sampling.
experiment pipeline for Policy
html visualization
remove nlp func
minor fix.
policy gradient magically working for c = 0
visualization of policy tags.
adjust weights of unigram and bigram features.
.
minor bug fix
.
a bug in Gburn-in of Gibbs sampling.
add POS tag features.
.
Merge branch 'master' of https://github.com/strin/postag into policy

Conflicts:
	test_stop.py
Merge branch 'policy' of https://github.com/strin/postag into policy
corpus
add posterior to visualization
test policy script for WSJ