Added a simple script to fix nginx errors

dev-scripts/clear-custom-nginx.js

@@ -0,0 +1,22 @@
+/*jshint esversion: 6 */
+
+const fs = require('fs-extra');
+const CONFIG_FILE_PATH = '/captain/data/config-captain.json';
+
+const fileContent = JSON.parse(fs.readFileSync(CONFIG_FILE_PATH, {
+    encoding: 'utf-8'
+}));
+
+fs.writeFileSync(CONFIG_FILE_PATH + '.backup', JSON.stringify(fileContent));
+
+
+fileContent.nginxBaseConfig = '';
+fileContent.nginxCaptainConfig = '';
+
+const apps = fileContent.appDefinitions || {};
+
+Object.keys(apps).forEach(app => {
+    apps[app].customNginxConfig = '';
+});
+
+fs.writeFileSync(CONFIG_FILE_PATH, JSON.stringify(fileContent));