Squashed '.vim/bundle/ack.vim/' content from commit 53b714d

git-subtree-dir: .vim/bundle/ack.vim
git-subtree-split: 53b714de7688530c161f5822a1cd9968c0abdb98
Merge commit 'dea3353eacf40871d8e076b5fff8c85f113275cb' as '.vim/bundle/ack.vim'