Merge pull request #145 from tedious/supress_php_warning

Suppressed imap_open warning

Author: tedivm

src/Fetch/Server.php

@@ -310,7 +310,7 @@ protected function setImapStream()
             if (!imap_reopen($this->imapStream, $this->getServerString(), $this->options, 1))
                 throw new \RuntimeException(imap_last_error());
         } else {
-            $imapStream = imap_open($this->getServerString(), $this->username, $this->password, $this->options, 1, $this->params);
+            $imapStream = @imap_open($this->getServerString(), $this->username, $this->password, $this->options, 1, $this->params);
 
             if ($imapStream === false)
                 throw new \RuntimeException(imap_last_error());