Make Opengraph really functional

3 URLs of images used on social networks are passed in absolute URL.

Note that I did not pass all the images in absolute URLs, but, it could be consistent to do so, but, if the images work, maybe a relative call is more efficient?

Remove the version of PrivateBin, at the end of each image. This apparently prevents the opengraph from working, and, so I deleted on all of the images, to remain consistent at this level. This will make fewer requests, and, anyway, the images are not intended to change with each version.

lib/Controller.php

@@ -369,6 +369,7 @@ class Controller
 
         $page = new View;
         $page->assign('NAME', $this->_conf->getKey('name'));
+        $page->assign('PATH', I18n::_($this->_conf->getKey('path')));
         $page->assign('ERROR', I18n::_($this->_error));
         $page->assign('STATUS', I18n::_($this->_status));
         $page->assign('VERSION', self::VERSION);