Merge pull request #85 from Nyholm/flex2

Make sure tests on different sf versions are wokring

.travis.yml

@@ -31,9 +31,9 @@ install:
     - dev/bin/docker-compose build --build-arg PHP_VERSION=${PHP_VERSION} php
 
 before_script:
-    - dev/bin/php composer require symfony/flex --ansi --no-update
+    # Our docker image has symfony/flex installed to make sure SYMFONY_VERSION is working
     - dev/bin/php composer config extra.symfony.require "${SYMFONY_VERSION}"
-    - dev/bin/php composer install --ansi --prefer-dist --no-scripts
+    - dev/bin/php composer update --ansi --prefer-dist
 
 script:
     - dev/bin/php composer test -- --colors=always --coverage-clover=coverage.xml --debug

dev/docker/Dockerfile

@@ -47,7 +47,7 @@ RUN curl --show-error https://getcomposer.org/installer | php -- \
 RUN useradd -ms /bin/sh app
 
 # Enable parallel package installation for Composer
-RUN su-exec app composer global require hirak/prestissimo
+RUN su-exec app composer global require symfony/flex
 
 COPY entrypoint.sh /usr/local/bin/docker-entrypoint