replaced add_states function with set_states
added docs
pep8 compliant [issue 10]
update travis
update travis.yml
updated travis.yml
updated travis.yml
updated travis.yml
updated travis.yml
updated travis
fixed function name
is_active_trail and active_trail_nodes function added
.idea removed
removed tests from BayesianModel, removed redundancy in active_trail_nodes
Merge pull request #13 from abinashpanda/dev

Dev
Added mailing list
add coveralls
Merge branch 'dev' of https://github.com/pgmpy/pgmpy into dev
Add coveralls badge
updated cover-package