travis ci config improvements
Merge remote-tracking branch 'origin/master' into travis_improvement
removed quotes from travis
removed redundant spaces from travis config
removed superuser install from travis config
up to python 2.6 and django 1.5
use default logging for passing tests with 1.3 version
tests independent from example projects
forgotten __init__.py
django 1.3 can't filter by <fk>_id field
django 1.3 can't filter by <fk>_id field again
django 1.3 contains urls utils in django.cong.urls.defaults
Merge pull request #66 from hovel/travis_improvement

Travis ci improvement, django 1.3 full compatibility