Stop reversing changelog entries

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.

docs/sphinx_extensions/dfhack/changelog.py

@@ -156,9 +156,6 @@ def parse_changelog():
 def consolidate_changelog(all_entries):
     for sections in all_entries.values():
         for section, entries in sections.items():
-            # sort() is stable, so reverse entries so that older entries for the
-            # same feature are on top
-            entries.reverse()
             entries.sort(key=lambda entry: entry.sort_key)
             new_entries = []
             for feature, group in itertools.groupby(entries,