Use Monolog instead of custom solution

Remove that ugly `openlog` & `syslog`

Author: j0k3r

README.md

@@ -45,3 +45,20 @@ if ($result) {
     echo 'Looks like we couldn\'t find the content. :(';
 }
 ```
+
+If you want to debug it, or check what's going on, you can inject a logger (which must follow `Psr\Log\LoggerInterface`, Monolog for example):
+
+```php
+use Readability\Readability;
+use Monolog\Logger;
+use Monolog\Handler\StreamHandler;
+
+$url = 'http://www.medialens.org/index.php/alerts/alert-archive/alerts-2013/729-thatcher.html';
+$html = file_get_contents($url);
+
+$logger = new Logger('readability');
+$logger->pushHandler(new StreamHandler('path/to/your.log', Logger::DEBUG));
+
+$readability = new Readability($html, $url);
+$readability->setLogger($logger);
+```

composer.json

@@ -24,7 +24,8 @@
         "role": "Developer (original JS version)"
     }],
     "require": {
-        "php": ">=5.3.3"
+        "php": ">=5.3.3",
+        "monolog/monolog": "^1.13.1"
     },
     "require-dev": {
         "satooshi/php-coveralls": "~0.6"