removed: dependencies to 'tz' system structure

now we are using PT::Date from pikotools



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@839 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/lastcontainer.h

@@ -14,6 +14,7 @@
 #include <list>
 #include <cstring>
 #include <ctime>
+#include "date/date.h"
 
 
 
@@ -37,8 +38,8 @@ struct LastItem
 	long session_id;
 
 	// start logging and end logging
-	tm start;
-	tm end;
+	PT::Date start;
+	PT::Date end;
 
 
 	LastItem();