Add .travis.yml for CI
Add build status images to README
Add flake8 check & resolve violations
Fixed requirements.txt
Modified setup.py to accomodate the naming convention used for party_communication module

party_communication module is installed as trytonzz_party_communication which does not go with the normal tryton convention of trytond_<>.
This patch modifies setup.py for the same
Merge pull request #5 from shalabhaggarwal/develop

Add flake8 check, resolve violations and travis scripts for CI