Attempt with another url for django

.travis.yml

@@ -7,14 +7,14 @@ python:
 
 env:
   - DJANGO=https://github.com/django/django/zipball/master
-  - DJANGO=https://www.djangoproject.com/download/1.5c1/tarball/
+  - DJANGO=http://optiminformatique.fr/media/Django-1.5c1.tar.gz
   - DJANGO=django==1.4.3 --use-mirrors
   - DJANGO=django==1.3.5 --use-mirrors
 
 install:
   - pip install $DJANGO
   - 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 [[ $TRAVIS_PYTHON_VERSION == '3.2' ]]; then pip install 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=.