Merge pull request facebookarchive#78 from alixandru/master

Use OS-specific directory separator instead of hard-coded forward slash

Author: gfosco

src/base_facebook.php

@@ -962,7 +962,7 @@ protected function makeRequest($url, $params, $ch=null) {
       self::errorLog('Invalid or no certificate authority found, '.
                      'using bundled information');
       curl_setopt($ch, CURLOPT_CAINFO,
-                  dirname(__FILE__) . '/fb_ca_chain_bundle.crt');
+                  dirname(__FILE__) . DIRECTORY_SEPARATOR . 'fb_ca_chain_bundle.crt');
       $result = curl_exec($ch);
     }