Update the travis-ci file

Author: clemfromspace

.travis.yml

@@ -10,16 +10,14 @@ python:
 addons:
   firefox: "49.0.2"
 
-before_install:
-  - wget https://github.com/mozilla/geckodriver/releases/download/v0.11.1/geckodriver-v0.11.1-linux64.tar.gz
-  - mkdir geckodriver
-  - tar -xzf geckodriver-v0.11.1-linux64.tar.gz -C geckodriver
-  - export PATH=$PATH:$PWD/geckodriver
-
 install:
 - pip install -r requirements/requirements-test.txt
 
 before_script:
+  - wget https://github.com/mozilla/geckodriver/releases/download/v0.11.1/geckodriver-v0.11.1-linux64.tar.gz
+  - mkdir geckodriver
+  - tar -xzf geckodriver-v0.11.1-linux64.tar.gz -C geckodriver
+  - export PATH=$PATH:$PWD/geckodriver
   - "export DISPLAY=:99.0"
   - "sh -e /etc/init.d/xvfb start"
   - sleep 3