{
    "name": "elfet/deployer",
    "description": "Deployment Tool",
    "license": "MIT",
    "authors": [
        {
            "name": "Elfet",
            "email": "anton@elfet.ru"
        }
    ],
    "autoload": {
        "psr-4": {
            "Deployer\\": "src/"
        },
        "files": [
            "src/functions.php"
        ]
    },
    "bin": [
        "bin/dep"
    ],
    "require": {
        "php": ">=5.4.0",

        "symfony/finder": "~2.5",
        "symfony/console": "~2.5",
        "elfet/php-ssh": "~1.0",
        "phpseclib/phpseclib": "0.3.*@dev",
        "kherge/amend": "~3.0"
    },
    "require-dev": {
        "phpunit/phpunit": "~3.7"
    }
}

{
    "name": "elfet/deployer",
    "description": "Deployment Tool",
    "license": "MIT",
    "authors": [
        {
            "name": "Elfet",
            "email": "anton@elfet.ru"
        }
    ],
    "autoload": {
        "psr-4": {
            "Deployer\\": "src/"
        },
        "files": [
            "src/functions.php"
        ]
    },
    "bin": [
        "bin/dep"
    ],
    "require": {
        "php": ">=5.4.0",
        "symfony/finder": "~2.5",
        "symfony/console": "~2.5",
        "elfet/php-ssh": "~1.0",
        "phpseclib/phpseclib": "0.3.*@dev",
        "kherge/amend": "~3.0"
    },
    "require-dev": {
        "phpunit/phpunit": "~3.7"
    },
    "extra": {
        "branch-alias": {
            "dev-master": "2.1.x-dev"
        }
    }
}

Allow to require deployer master through alias
Allow to require deployer master through alias

Add `"elfet/deployer": "~2.1.0@dev"` to composer in order to fetch master branch.