comment search: optionally search only from # days back in time

[yrkoon57]

Dear Matt Wright.
Great application, thanks for making and maintaining it.
If it isn't too much work:
could we please have a user defined offset - stored in the database, too - relative from the current date backwards, counted in days, or even the last-but-one comments download date, as a starting point in time for the default search, instead of Jan 1st 1970 ?
I think, other users too, may mainly be interested in examining at first glance comments added recently, i.e. since around the download time preceding the current download per default.
Although an automatic recording of that last-but-one download date as a reference point in time would be nice, a simple field for a for a user-defined number of days to subtract from the current date may also suffice. Best of two worlds - of course - would supply both options, possibly even combinable.
Best regards
Y.