added lifetime calculation for VERSION file

version.inc.php

@@ -86,3 +86,12 @@ function get_inc_game_version()
   return $string;     
 }
 
+function get_version_file_lifetime()
+{
+  global $GAME_ROOT;
+  
+  exec("git log --follow --format=%ad --date=format:'%Y-%m-%d %H:%M:%S' " . $GAME_ROOT . "/VERSION" , $creating_timestamp);
+  $minutes = (time() - strtotime($creating_timestamp[0])) / 60;
+ 
+  return ceil($minutes);
+}