Version 2 of patch, added new filters for tasks:
Active (opened tasks that the current date between start and due dates)
My active (assigned to user tasks that the current date between start and due dates)
My subscribed (all tasks for which current user is subscribed)
And I increase the filter select widget width.
For localize new filter items, you need to add translations:
'overdue': 'Overdue',
'active': 'Active',
'my active': 'My active',
'my subscribed': 'My subscribed',
I have attached the language file for Russian and English, you must place it into language/xx_xx folder.