Added a new value for date filters: 'this week'

git-svn-id: http://redmine.rubyforge.org/svn/trunk@704 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/queries/_filters.rhtml

@@ -34,6 +34,7 @@ function toggle_operator(field) {
     case "!*":
     case "*":
     case "t":
+    case "w":
     case "o":
     case "c":
       Element.hide("div_values_" + field);