TaskPaper regexes

TaskPaper syntax allows for tags after the @done tag, as well as tags on projects. Added both to regexes.

Not sure if you had other intentions, but I really want to use this alongside TaskPaper. To that end I also removed the space that you put in between @done and (date). TaskPaper formats these as @done(xx-xx-xxxx). I didn't change that in this pull request, but you might consider it… at least as a preference option.