Trying to fix Travis docker setup

Author: thomasfillon

.travis.yml

@@ -1,22 +1,28 @@
 language: python
 python:
   - "2.7"
+  
+sudo: required
 
-virtualenv:
-  system_site_packages: true
+services:
+  - docker
 
 env:
   - TEST_TARGET=default  # Default unit test
   - TEST_TARGET=cli      # Test for TimeSide command line interfaces
   - TEST_TARGET=doc      # Test documentation and included doctest
   - TEST_TARGET=server   # Test timeside.server
 
+before_install:
+  - sudo docker --version
+  - docker-compose --version
 
 # Install TimeSide
 install:
-  - sudo apt-get install -y linux-image-virtual kernel linux-image-extra-virtual
-  - curl -sSL https://get.docker.com/ | sudo sh
+  #- sudo apt-get install -y linux-image-virtual kernel linux-image-extra-virtual
+  #- curl -sSL https://get.docker.com/ | sudo sh
   - sudo pip install docker-compose
+  - docker-compose --version
   #- pip install --upgrade pip
   #- pip install -r requirements.txt
   - docker-compose -f docker-compose.yml -f conf/build.yml build