Vim: Add bundle.

https://github.com/kana/vim-filetype-haskell
https://github.com/eagletmt/ghcmod-vim
https://github.com/ujihisa/neco-ghc
https://github.com/ujihisa/ref-hoogle
https://github.com/ujihisa/unite-haskellimport
Vim: Fix Arm plugin settings.
Vim: Fix Operator User plugin settings.
Vim: Fix GitComplete plugin settings.
Vim: Fix HybridText plugin settings.
Vim: Fix delete all buffer mapping.
Vim: Fix some mappings.
Vim: Fix bundle depends.
Vim: Add bundle.

https://github.com/tyru/eskk.vim
https://github.com/basyura/J6uil.vim
https://github.com/mattn/webapi-vim