Swvim is a little vim package. It's lightweight and optimized for rails development in terminal vim.
Be sure that you don't have any .vim.old .vimrc.old .gvimrc.old in your home directory.
Then do
git clone git@github.com:SweeD/swvim.git ~/.swvim
cd ~/.swvim
./install.sh
Now you have to follow these steps to finish the installation:
gem install vim-update-bundles
vim-update-bundles
And now you're ready to go!