Change rename.vim to Tim Pope's vim-eunuch

Does what rename.vim does (`:Move` or `:Rename`) **plus**:

* Adds `:Unlink` or `:Remove` to delete the current buffer + file
* Adds `:Mkdir` (with no argument, create the current file's containing
  directory)
* Adds `:SudoWrite` if you forget to edit a file as root
* Automatically chmods a file to `+x` if it starts with `#!`
* Tim Pope! ❤️

vimrc.bundles

@@ -12,7 +12,6 @@ Plugin 'gmarik/Vundle.vim'
 " Define bundles via Github repos
 Plugin 'christoomey/vim-run-interactive'
 Plugin 'croaky/vim-colors-github'
-Plugin 'danro/rename.vim'
 Plugin 'kchmck/vim-coffee-script'
 Plugin 'kien/ctrlp.vim'
 Plugin 'pbrisbin/vim-mkdir'
@@ -21,6 +20,7 @@ Plugin 'slim-template/vim-slim'
 Plugin 'thoughtbot/vim-rspec'
 Plugin 'tpope/vim-bundler'
 Plugin 'tpope/vim-endwise'
+Plugin 'tpope/vim-eunuch'
 Plugin 'tpope/vim-fugitive'
 Plugin 'tpope/vim-rails'
 Plugin 'tpope/vim-repeat'