Using "Mark all as Read" doesn't save the settings

Hi there,

I just started using the Sage rss reader.

One thing I noticed that's not really a bug but more a usablity problem.

When you use the "Mark all as read" feature, it works well until you change of feed. Then, if you go back to the previous feed, all the threads are once again not marked as read.

So this is not really useful when you're using Sage on a daily basis. You need to know what's been read and what hasn't.