added port support to config

[miholeus]

Fixed

Added port support to config

Now you can set port in your config

'production' => [
   'servers' => [
        'host' => '%%PRODUCTION_HOST%%',
        'port' => '%%PRODUCTION_PORT%%',
        'username' => '%%PRODUCTION_USERNAME%%',
        'password' => null,
        'key' => '%%PRODUCTION_KEY%%',
        'keyphrase' => '%%PRODUCTION_KEYPHRASE%%',
        'agent' => true,
]]

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References #756

[Anahkiasen]

Hey dude, just want to say you're not making PRs in the wind i'm checking them as they come, just haven't had the time to give them a proper review yet

[miholeus]

Hi! I noticed there are some errors with unit tests that appeared long ago. Will you not mind if I fix them?