refactoring (#116)

- refactoring architecture
- fix incomplete ssh logs
- code editor for scripts in the app
- remove Jobs and SSHCommands

app/SSH/Services/Webserver/scripts/nginx/change-php-version.sh

@@ -0,0 +1,9 @@
+if ! sudo sed -i 's/php__old_version__/php__new_version__/g' /etc/nginx/sites-available/__domain__; then
+    echo 'VITO_SSH_ERROR' && exit 1
+fi
+
+if ! sudo service nginx restart; then
+    echo 'VITO_SSH_ERROR' && exit 1
+fi
+
+echo "PHP Version Changed to __new_version__"