remove configurable dir for traffic & purge limiters

lib/Configuration.php

@@ -80,13 +80,11 @@ class Configuration
         'traffic' => array(
             'limit'      => 10,
             'header'     => null,
-            'dir'        => 'data',
             'exemptedIp' => null,
         ),
         'purge' => array(
             'limit'     => 300,
             'batchsize' => 10,
-            'dir'       => 'data',
         ),
         'model' => array(
             'class' => 'Filesystem',

lib/Controller.php

@@ -162,7 +162,6 @@ class Controller
         $this->_model   = new Model($this->_conf);
         $this->_request = new Request;
         $this->_urlBase = $this->_request->getRequestUri();
-        ServerSalt::setPath($this->_conf->getKey('dir', 'traffic'));
 
         // set default language
         $lang = $this->_conf->getKey('languagedefault');

lib/Persistence/PurgeLimiter.php

@@ -52,7 +52,6 @@ class PurgeLimiter extends AbstractPersistence
     public static function setConfiguration(Configuration $conf)
     {
         self::setLimit($conf->getKey('limit', 'purge'));
-        self::setPath($conf->getKey('dir', 'purge'));
     }
 
     /**
@@ -71,7 +70,7 @@ class PurgeLimiter extends AbstractPersistence
         }
 
         $now  = time();
-        $pl = (int) self::$_store->getValue('purge_limiter');
+        $pl   = (int) self::$_store->getValue('purge_limiter');
         if ($pl + self::$_limit >= $now) {
             return false;
         }

lib/Persistence/TrafficLimiter.php

@@ -85,7 +85,6 @@ class TrafficLimiter extends AbstractPersistence
     public static function setConfiguration(Configuration $conf)
     {
         self::setLimit($conf->getKey('limit', 'traffic'));
-        self::setPath($conf->getKey('dir', 'traffic'));
         self::setExemptedIp($conf->getKey('exemptedIp', 'traffic'));
 
         if (($option = $conf->getKey('header', 'traffic')) !== null) {