re-introducing (optional) URL shortener support, resolves #58

lib/configuration.php

@@ -44,6 +44,7 @@ class configuration
             'base64version' => '2.1.9',
             'languageselection' => false,
             'languagedefault' => '',
+            'urlshortener' => '',
         ),
         'expire' => array(
             'default' => '1week',

lib/zerobin.php

@@ -455,6 +455,7 @@ class zerobin
         $page->assign('EXPIRE', $expire);
         $page->assign('EXPIREDEFAULT', $this->_conf->getKey('default', 'expire'));
         $page->assign('EXPIRECLONE', !$this->_doesExpire || ($this->_doesExpire && $this->_conf->getKey('clone', 'expire')));
+        $page->assign('URLSHORTENER', $this->_conf->getKey('urlshortener'));
         $page->draw($this->_conf->getKey('template'));
     }