Shiny new Directory Structure

// composer.json
{
    "require": {
        "php": ">=5.5.9",
        "symfony/symfony": "3.0.*", // v3.0.0
        "doctrine/orm": "~2.5@dev", // 2.7.x-dev
        "doctrine/doctrine-bundle": "~1.6@dev", // 1.10.x-dev
        "doctrine/doctrine-cache-bundle": "~1.2@dev", // 1.3.2
        "symfony/security-acl": "~3.0@dev", // dev-master
        "symfony/swiftmailer-bundle": "~2.3", // v2.3.8
        "symfony/monolog-bundle": "~2.7@dev", // dev-master
        "sensio/distribution-bundle": "~5.0@dev", // v5.0.22
        "sensio/framework-extra-bundle": "^3.0.2", // v3.0.11
        "incenteev/composer-parameter-handler": "~2.0", // v2.1.2
        "doctrine/doctrine-fixtures-bundle": "^2.3", // v2.4.1
        "composer/package-versions-deprecated": "^1.11" // 1.11.99
    },
    "require-dev": {
        "sensio/generator-bundle": "~3.0", // v3.0.0
        "symfony/phpunit-bridge": "~2.7" // v2.7.6
    }
}