Make boostrapping Loadspeakr a little less brittle

- Require the application default settings. Loadspkr needs it
and have to stop if not present and not simply throw a
notification.
- Introduce a constant that points to where Loadspkr have been installed. Allows
us to later move the common.inc.php without it breaks the bootstrap.

common.inc.php

@@ -81,8 +81,10 @@ $conf['modules']['available'] = array('static','service', 'type');
 $conf['admin']['pass'] = 'admin';
 
 global $lodspk;
-
 $lodspk['maxResults'] = 1000;
-include_once('settings.inc.php');
+
+if (file_exists(LOADSPEAKR_ROOT . '/settings.inc.php')) {
+    require_once LOADSPEAKR_ROOT . '/settings.inc.php';
+}
+
 $conf['view']['standard']['baseUrl'] = $conf['basedir'];
-?>

index.php

@@ -7,7 +7,10 @@ use uib\ub\loadspeakr\Importer;
 use uib\ub\loadspeakr\Logging;
 use uib\ub\loadspeakr\Utils;
 
+const LOADSPEAKR_ROOT = __DIR__;
+
 require_once __DIR__ . '/vendor/autoload.php';
+require_once __DIR__ . '/common.inc.php';
 
 if (isset($_GET['q']) && $_GET['q'] === 'import') {
     $imp = new Importer();
@@ -21,8 +24,6 @@ if (!file_exists('settings.inc.php')) {
     exit(0);
 }
 
-include_once('common.inc.php');
-
 $conf['logfile'] = null;
 if ($conf['debug']) {
     if (isset($_GET['q']) && $_GET['q'] === 'logs') {
@@ -64,7 +65,6 @@ if ($uri === $conf['basedir']) {
 
 // Configure external URIs if necessary.
 $localUri = $conf['basedir'] . $_GET['q'];
-$foo = $_SERVER['HTTP_HOST'];
 $uri = Utils::getMirroredUri($localUri);
 
 // Load Loadspeakr modules.