Lo's corrections
Using the APIs notice I do not clean the output dir anymore (TODO flag)
ArgumentParser - feel free to move in module if starts growing
Deleted SecondPosts/Changelog - 304.4.txt
Nitpick
Templates
Using the generate_changelog.py API for Wrye Bash Version History:

NB: the html files in templates/ have some few typo corrections but are
otherwise based on 62e0daca1458e300fc27394b70a3f3c095c1bbdb
Thread History correction