Fixed the case for the Emogrifier includes.

git-svn-id: http://svn.code.sf.net/p/itop/code/trunk@4292 a333f486-631f-4898-b8df-5754b55c2be0

core/email.class.inc.php

@@ -309,7 +309,7 @@ IssueLog::Info(__METHOD__.' '.$this->m_oMessage->toString());
 	{
 		if (($sMimeType === 'text/html') && ($sCustomStyles !== null))
 		{
-			require_once(APPROOT.'lib/emogrifier/classes/emogrifier.php');
+			require_once(APPROOT.'lib/emogrifier/Classes/Emogrifier.php');
 			$emogrifier = new \Pelago\Emogrifier($sBody, $sCustomStyles);
 			$sBody = $emogrifier->emogrify(); // Adds html/body tags if not already present
 		}