first commit
update sub
Add 'vendor/' from commit 'f0da9e68653a7e3a59bf065602280342f15933a1'

git-subtree-dir: vendor
git-subtree-mainline: 0395f474ac4e3f4dedd205dbc7542b6d6bdc008a
git-subtree-split: f0da9e68653a7e3a59bf065602280342f15933a1
remove subtree