Allow file:///someLocalDir remote uris

[cr1st1p]

I wanted to drive test this program (without real ftp) and I used as remote something like file:///tmp/testDestination, but I got an error about remote being invalid.

A fix, below (tested):

diff --git a/src/Deployment/CliRunner.php b/src/Deployment/CliRunner.php
index 3c53073..efaf38b 100644
--- a/src/Deployment/CliRunner.php
+++ b/src/Deployment/CliRunner.php
@@ -110,7 +110,8 @@ class CliRunner
                if (
                        empty($config['remote'])
                        || !($urlParts = parse_url($config['remote']))
-                       || !isset($urlParts['scheme'], $urlParts['host'])
+                       || !isset($urlParts['scheme'])
+                       || (($urlParts['scheme'] != 'file') && !isset($urlParts['host']))
                ) {
                        throw new \Exception("Missing or invalid 'remote' URL in config.");
                }