Added venv files to .gitignore
Switched to django==1.5.5 and tested working with python 3.2. Switched to using class based views in views.py.
Updated README with virtualenv setting up details.
Merge branch 'master' of https://github.com/pramttl/pgmpy_viz
Resolved minor pep8 error in views.
Merge branch 'master' of https://github.com/pramttl/pgmpy_viz
Code cleanup Refs #15
Merge branch 'master' of https://github.com/pramttl/pgmpy_viz
minor changes fixes #15