neos dev distribution setup

composer.json

 "require": {
        "neos/neos-development-collection": "@dev",
        "neos/flow-development-collection": "@dev",
        "neos/event-sourcing": "@dev",
        "neos/demo": "dev-master",
        "neos/flow-log": "@dev",
        "neos/neos-ui": "~1.0.0",
        "neos/neos-ui-compiled": "~1.0.0",

        "neos/party": "@dev",
        "neos/seo": "@dev",
        "neos/imagine": "@dev",
        "neos/twitter-bootstrap": "@dev",
        "neos/form": "@dev",
        "neos/setup": "@dev",
        "flowpack/neos-frontendlogin": "@dev",
        "neos/buildessentials": "@dev",
        "mikey179/vfsstream": "~1.6",
        "phpunit/phpunit": "~6.0.0",
        "symfony/css-selector": "~2.0",
        "neos/behat": "dev-master",
        "psr/container": "^1.0"
},