Squashed 'bundle/vimwiki/' content from commit 2c03d82

git-subtree-dir: bundle/vimwiki
git-subtree-split: 2c03d82a0e4662adf1e347487d73a9bf4bf6fdac
Merge commit 'f598ad93a383043a926665cc84163f671904bc57' as 'bundle/vimwiki'