Fix bug when flat_map is used inside another flat_map with enumerable, closes #2483
Fixed Changelog typos
Merge pull request #2493 from jwarwick/changelog_typos

Fixed Changelog typos
Fix some sentence tenses in changelog
fix range typo
Merge pull request #2494 from jw2013/typo

fix typo in range moduledoc
Always return ok from tracking functions
Return explicit :ok from more functions
Ensure case wrapper in cond gets the proper line