Easy setup

Mike,
This is a simple setup script. I use this vim setup on all instances I work on. A git.io tiny URL can be created for this setup script once this is merged as follows:
```
curl -i http://git.io -F "url=https://raw.github.com/metral/vimrc/setup.sh"
```
And the README can be changed to
```
curl -skL git.io/****|sh
```