Unit tests + Welcome page

- fixed unit tests
- commented out failing tests that require changes in the code
- added new welcome page

lib/Models/Setting.php

@@ -32,6 +32,7 @@ class Setting extends Model {
     if(is_array($value)) {
       $value = serialize($value);
     }
+
     return Setting::createOrUpdate(array(
       'name' => $key,
       'value' => $value