Filter tags based on date

[bergercookie]

Hi there,

Thanks for this great software!
It would be useful to be able to to filter tasks based on their due or even scheduled date.

This would allow e.g., only showing tasks that are due:today.
On top of that, adding the ability to set a range instead of a single date would also be of benefit and would allow expressing something more complex like "give me all the tasks 'till the end of this week" task due.after:yesterday and due.before:eow