Cleaned up leader mapping comments/added vim-Bbye to manage_subtrees
Squashed 'bundle/vim-bbye/' content from commit a018cbc

git-subtree-dir: bundle/vim-bbye
git-subtree-split: a018cbc1ba63b1a8b86b7c468645e7642637ec4a
Merge commit '1eea0add18baa07190ed0bd88b3dcac7ce516eec' as 'bundle/vim-bbye'