Squashed 'vim/bundle/vim-signify/' content from commit be2d729

git-subtree-dir: vim/bundle/vim-signify
git-subtree-split: be2d7290ca90caee59e4518c96c5c5ca85e5e0b1
add vim-signify subtree
Squashed 'vim/bundle/vim-easyclip/' content from commit 4a2d326

git-subtree-dir: vim/bundle/vim-easyclip
git-subtree-split: 4a2d3266a5c593d72b50d7c88e6dd6ec73e34012
add vim-easyclip subtree