Squashed '.vim/bundle/signify/' changes from 75c8b4d..a03bee6

a03bee6 Add support for lazy loading
e4a428c Make hunk text object mappable

git-subtree-dir: .vim/bundle/signify
git-subtree-split: a03bee658f3c45590c0b3108c9e4579dc1bba922
Merge latest Sy, a03bee658f3c45590c0b3108c9e4579dc1bba922