RTR#23 Wrapping comments, hiding threads/posts, marking new comments in threads/posts, aggregate view angielski

Today, I managed to implement the points I described in RTR#19, and most of the changes are already visible. The remaining ones will be pushed on Monday. Before the release, I'll try to address three more things from the title, which I started working on earlier and are lingering on local branches. I don't want to make any...