Minor Reddit RSS Feed Updates

I added an extra feature to the reddit RSS feed generator to allow users to choose what timeframe to extract top posts for.

i.e. Top posts today/this week/this month/all time.

Shout out to Rohit at Rohit Online for emailing me with the feature request.

I am super happy to get comments / guestbook entries or emails. I purposely do not keep any viewership metrics on this site so the only way for me to find out if you like my content is to say hello :)