Localization

The first commit are a couple of lines of hard-coded text.
The second commit changes a bit the localization of a couple of messages creating a single string out of more smaller chunks. Usually it's better to keep strings together, because different languages may require different approaches.
Just to keep it a little simpler, I "forgot" about plurals and left only "others".
If you don't like it feel free to tell me, I'll fix the PR. ;)