fix 2 PHP Fatal error:

- Class 'EGroupware\Api\etemplate' not found in api/src/Contacts.php on line 1527
- Undefined constant 'EGroupware\Api\SessionEGW_SESSION_VAR' in api/src/Storage/Tracking.php on line 409

api/src/Contacts.php

@@ -18,6 +18,7 @@ namespace EGroupware\Api;
 
 // explicitly reference classes still in phpgwapi
 use categories;
+use etemplate;	// cats2color
 
 use calendar_bo;	// to_do: do NOT require it, just use if there
 

api/src/Storage/Tracking.php

@@ -406,7 +406,7 @@ abstract class Tracking
 		if ($GLOBALS['egw_info']['server']['log_user_agent_action'] && ($changed_fields || !$old))
 		{
 			$this->historylog->add('user_agent_action', $data[$this->id_field],
-				$_SERVER['HTTP_USER_AGENT'], $_SESSION[Api\SessionEGW_SESSION_VAR]['session_action']);
+				$_SERVER['HTTP_USER_AGENT'], $_SESSION[Api\Session::EGW_SESSION_VAR]['session_action']);
 		}
 		foreach($changed_fields as $name)
 		{