Move browser-kit and css-selector to require-dev

See #649

Author: garak

composer.json

@@ -12,8 +12,6 @@
         "sensio/framework-extra-bundle": "^3.0",
         "sensiolabs/security-checker": "^4.1",
         "symfony/asset": "^3.3",
-        "symfony/browser-kit": "^3.3",
-        "symfony/css-selector": "^3.3",
         "symfony/expression-language": "^3.3",
         "symfony/flex": "^1.0",
         "symfony/form": "^3.3",
@@ -33,6 +31,8 @@
     "require-dev": {
         "dama/doctrine-test-bundle": "^3.1",
         "friendsofphp/php-cs-fixer": "^2.4",
+        "symfony/browser-kit": "^3.3",
+        "symfony/css-selector": "^3.3",
         "symfony/debug-bundle": "^3.3",
         "symfony/dotenv": "^3.3",
         "symfony/phpunit-bridge": "^3.3",