Update tox.ini

add django 1.6 (up to date)
remove python 2.6 (was not found anyways)
Update setup.py
Update __init__.py

PEP8 love
"%s" changed for "{}".format()
Create .travis.yml

Continuous Integration Testing with Travis-CI.org
Update .travis.yml
Update .travis.yml
Merge pull request #20 from juancarlospaco/master

PEP8,Lint,Continuous Integration Testing