Adding 4.0 to symfony dependencies

Author: dnahrebecki

.travis.yml

@@ -23,6 +23,9 @@ matrix:
       env: SYMFONY_VERSION=2.8.*
     - php: 5.6
       env: SYMFONY_VERSION=3.0.* COVERAGE=true
+    # test the latest release (including beta releases)
+    - php: 7.1
+      env: DEPENDENCIES=beta
   allow_failures:
     - php: hhvm
     - php: 7.0
@@ -32,6 +35,7 @@ cache:
     - $HOME/.composer/cache/files
 
 before_script:
+  - if [ "$DEPENDENCIES" = "beta" ]; then composer config minimum-stability beta; fi;
   - if [[ $TRAVIS_PHP_VERSION != hhvm ]]; then phpenv config-rm xdebug.ini; fi;
   - echo "extension = mongo.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
   - composer self-update

composer.json

@@ -18,15 +18,15 @@
     "require": {
         "php": "^5.3.3|^7.0",
         "friendsofsymfony/oauth2-php": "~1.1",
-        "symfony/framework-bundle": "~2.2|~3.0",
-        "symfony/security-bundle": "~2.1|~3.0",
-        "symfony/dependency-injection": "^2.0.5|~3.0"
+        "symfony/framework-bundle": "~2.2|~3.0|^4.0",
+        "symfony/security-bundle": "~2.1|~3.0|^4.0",
+        "symfony/dependency-injection": "^2.0.5|~3.0|^4.0"
     },
     "require-dev": {
-        "symfony/class-loader": "~2.1|~3.0",
-        "symfony/yaml": "~2.1|~3.0",
-        "symfony/form": "~2.3|~3.0",
-        "symfony/console": "~2.1|~3.0",
+        "symfony/class-loader": "~2.1|~3.0|^4.0",
+        "symfony/yaml": "~2.1|~3.0|^4.0",
+        "symfony/form": "~2.3|~3.0|^4.0",
+        "symfony/console": "~2.1|~3.0|^4.0",
         "willdurand/propel-typehintable-behavior": "^1.0.4",
         "propel/propel1": "^1.6.5",
         "phing/phing": "~2.4",