Initial work towards template support

* Simple refactoring of the config system
* Add new unstyled template
* Add new modern template (previously the only)
* Add placeholder for blocky template
* Relocate autoloader
* Move build to ./bin

vendor/autoload.php

@@ -0,0 +1,17 @@
+<?php
+
+spl_autoload_register(function ($className) {
+    $namespaces = explode('\\', $className);
+    if (count($namespaces) > 1) {
+        $classPath
+            = APPLICATION_BASE_PATH
+            . '/vendor/'
+            . implode('/', $namespaces)
+            . '.php';
+        if (file_exists($classPath)) {
+            require_once($classPath);
+        }
+    }
+});
+
+/* End of file autoload.php */