Version 1.7.1 — auto default_page detection

- config.json now has default_page: auto for fresh installs
- CodePressCMS::detectDefaultPage() scans content/ for first available file
- getHomepageTitle() also respects auto mode
- Admin config form preserves auto as selectable option
- Save handler falls back to auto instead of index

package.json

@@ -1,6 +1,6 @@
 {
   "name": "codepress",
-  "version": "1.7.0",
+  "version": "1.7.1",
   "description": "A lightweight, file-based Content Management System built with PHP and Bootstrap.",
   "main": "index.js",
   "scripts": {