Template expansion via #{...} now removes a final newline if such a final newline is present. (It doesn't remove more than one newline.)

The final newline is really an implementation artifact of files; it's there because lines end with newlines, not because people consider it to be part of the file's real content. Deleting it thus brings template expansion closer to inserting people's idea of the file's contents into place.

It also means that we avoid having templates introduce whitespace into undesired places. For example:

[There's more starting at %{blog::seemore}#{blog/rangemore}]

and blog/rangemore of:

or %{range::moreclip}

doesn't introduce a gap between the end of %{range::moreclip}'s output and the ']' in what the browser displays. (See how we didn't think of blog/rangemore as actually having a newline at the end as part of it?)