Use dev requirements.txt for CI

.gitlab-ci.yml

 image: python:3.6-slim
 
 before_script:
-  - apt-get update && apt-get install -y apache2 apache2-dev libapache2-mod-wsgi-py3 build-essential git
-  - pip install -r requirements.txt
-  - easy_install bottle_memcache
+  - apt-get update && apt-get install -y build-essential git
+  - pip install -r requirements.dev.txt
+  # - easy_install bottle_memcache
   
   # make sure Neo4J connection details are provided as protected variables in Settings -> CI/CD -> Variables
   # this exports all variables so that connection details are available in environment