Fixed CI dependency installation

.gitlab-ci.yml

@@ -6,7 +6,7 @@ tests:
         - virtualenv-3.4 env
         - source env/bin/activate
         - cd src
-        - XDG_CACHE_HOME=/cache pip3 install -q -r requirements.txt
+        - XDG_CACHE_HOME=/cache pip3 install -q -r requirements.txt -r requirements/dev.txt
         - flake8 --ignore=E123,F403,F401,N802,C901,W503 .
         - isort -c -rc .
         - python3 manage.py check

.travis.yml

@@ -4,7 +4,7 @@ python:
     - "3.4"
 install:
     - pip install -U pip wheel
-    - pip install -q -r src/requirements.txt
+    - pip install -q -r src/requirements.txt -r src/requirements/dev.txt
     - npm install -g less@2.5.0
 before_script:
     - cd src