This makes entries show up in the same order in the generated docs as in changelog.txt
The only other significant difference this causes is that when notes from multiple prereleases are combined into one stable release, changes from the newer version will show up first now (i.e. in the same order as reading the changelog from the top down), but this has minimal impact.
The CSS (changed in bca76b8f) was removing space between actual paragraphs in
lists. This was intended to address excess padding in changelogs, but that is
resolved here by removing blank lines surrounding nested lists. This still
displays properly on GitHub/Reddit and presumably other Markdown implementations
as well.