Squashed '.vim/bundle/signify/' changes from 64c3b60..75c8b4d

75c8b4d Preserve user's order in vcs_list

git-subtree-dir: .vim/bundle/signify
git-subtree-split: 75c8b4d54a3e63fdb7450b3ceb881b6e81746405
Merge latest Sy, 75c8b4d54a3e63fdb7450b3ceb881b6e81746405