Be able to link to documents, files, tasks, date, etc.

When I'm working on documents, I really find it useful to link to other documents. In some other software, I've been able to use a format like [[my doc]] to do this. It'd be awesome if Upbase could offer this feature too.

We shouldn't have to limit ourselves to just documents. We could expand our link support to include other types like files, tasks, dates, and so on.