Check for travis builds.

.travis.yml

@@ -16,6 +16,7 @@ install:
   - pip install django-filter==0.5.4 --use-mirrors
   - "if [[ $TRAVIS_PYTHON_VERSION == '3.2' ]]; then pip install --upgrade https://github.com/alex/django-filter/tarball/master; fi"
   - "if [[ $DJANGO == 'django==1.3.5 --use-mirrors' ]]; then pip install six --use-mirrors; fi"
+  - "echo $DJANGO"
   - export PYTHONPATH=.
 
 script: