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/item.cpp

@@ -25,14 +25,14 @@ Item::Item()
 // may setting the date should be completetly removed from here?
 void Item::SetDateToNow()
 {
-	date_creation     = Time(std::time(0));
+	date_creation     = std::time(0);
 	date_modification = date_creation;
 }
 
 
 void Item::SetDateModifyToNow()
 {
-	date_modification = Time(std::time(0));
+	date_modification = std::time(0);
 }