Squashed 'bundle/vim-pathogen/' content from commit f1926ab

git-subtree-dir: bundle/vim-pathogen
git-subtree-split: f1926ab6731cb1877160ff94d01ea644d257076e
Merge commit '7977dc8c876eb0579807b3b9f27a6574f0064968' as 'bundle/vim-pathogen'
add pathogen