Nothing Pushing to Server

Hello. For the life of me I can't figure out why everything seems to be working but new code isn't pushed to the production server. Config is as follows:

```
'projects' => array(
array(
'ssh_connection' => 'production',

'git_repository' => 'git@github.com:mcblum/app.nationalmachine.co.git',

'git_remote' => 'origin',

'git_branch' => 'master',

'remote_directory' => '~/www/app',

'composer_update' => true,

'composer_optimize_autoload' => true,

'composer_extra_options' => '',

'composer_timeout' => 60 * 5, // 5 minutes

'artisan_migrate' => false,

'post_deploy_commands' => array(
'zsh send-deployment-emails.sh',
),
),
),
```

and

```
'default' => 'production',

'connections' => array(

'production' => array(
'host' => 'app.nationalmachine.co:(port we're using)',
'username' => 'national',
'key' => '~/.ssh/id_rsa.pub',
'keyphrase' => '',
'root' => '~/www/app',
),

),
```

Any help would be greatly appreciated. Thank for you taking the time to develop tools for all to use!

ETA: Composer is up to date, response code is 200 when I look at the webhook in git.
ETA2: I also tried changing 'git_repository' => to https://github.com/mcblum/app.nationalmachine.co, 'username' to root, and the host to the ip address rather than the domain name.

Start with the deployment configuration shown in the issue, checking the production SSH connection, repository, branch, and remote directory settings. Reproduce or trace the deployment flow and verify that a new commit reaches the production server; the issue is done when code is pushed successfully without configuration errors.

Written by the indexing model from the issue text.