Filter to exclude context

[SevereOverfl0w]

I have a context for "Things to read" which is a pretty big list! I'd love to be able to hide it. I thought something like ttdl ls -@ThingsToRead or ttdl ls !@ThingsToRead would work.

[VladimirMarkelov]

Thanks for the suggestion of the new feature. I think, it makes sense to support multiple exclude items as other applications(e.g, archivers and their file exclude masks) does.

[VladimirMarkelov]

I moved it to 3.0 as it requires modifying todo_lib interface - to include extra fields to a request. I think, it means "breaking compatibility with 2.x". That was why I announced 2.1 and marked this one 3.0. It does not mean that I put it to my backlog for long.