Global phpunit and fabpot/php-cs-fixer install

Use composer to install dev binaries on global home.

This will permit to remove dependencies on project composer that could make conflicts and always get the latest versions.

.travis.yml

@@ -13,10 +13,12 @@ sudo: false
 cache:
   directories:
     - $HOME/.composer/cache
+    - $HOME/.composer/vendor
     - $HOME/.cache/pip
 
 env:
   global:
+    - PATH="$HOME/.composer/vendor/bin:$PATH"
     - SYMFONY_DEPRECATIONS_HELPER=weak
 
 matrix:
@@ -46,6 +48,8 @@ before_script:
   - mkdir -p ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d && echo "memory_limit=-1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - composer selfupdate
   - composer config -q github-oauth.github.com $GITHUB_OAUTH_TOKEN
+  - composer global require phpunit/phpunit fabpot/php-cs-fixer --no-update
+  - composer global update --prefer-dist --no-interaction
   - if [ "$SYMFONY_VERSION" = "2.8.*@dev" ] || [ "$SYMFONY_VERSION" = "3.0.x-dev as 2.8" ]; then SYMFONY_DEPRECATIONS_HELPER=strict; fi;
   - if [ "$SYMFONY_VERSION" != "" ]; then composer require "symfony/symfony:${SYMFONY_VERSION}" --no-update; fi;
   - travis_wait composer update --prefer-dist --no-interaction $COMPOSER_FLAGS

Makefile

@@ -1,8 +1,8 @@
 cs:
-	./vendor/bin/php-cs-fixer fix --verbose
+	php-cs-fixer fix --verbose
 
 cs_dry_run:
-	./vendor/bin/php-cs-fixer fix --verbose --dry-run
+	php-cs-fixer fix --verbose --dry-run
 
 test:
 	phpunit

composer.json

@@ -45,8 +45,7 @@
         "sensio/generator-bundle": "~2.3",
         "symfony/yaml": "~2.3",
         "sonata-project/intl-bundle": "~2.1",
-        "symfony/phpunit-bridge": "~2.7|~3.0",
-        "fabpot/php-cs-fixer": "~0.5|~1.0"
+        "symfony/phpunit-bridge": "~2.7|~3.0"
     },
     "suggest": {
         "jms/translation-bundle": "Extract message keys from Admins",