Installation:

    git clone git://github.com/joeywang/vim.git ~/.vim

Create symlinks:

    ln -s ~/.vim/vimrc ~/.vimrc
    ln -s ~/.vim/gvimrc ~/.gvimrc

Switch to the `~/.vim` directory, and fetch submodules:

    cd ~/.vim
    git submodule update --init

Upgrading a plugin bundle

    cd ~/.vim/bundle/fugitive
    git pull origin master

Upgrade all bundle plugins

    git submodule foreach git pull origin master